বুধবার, ৮ আগস্ট, ২০১২

মঙ্গলবার, ৭ আগস্ট, ২০১২

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Source: http://www.theyellowads.com/home_improvement/security-organizing-of-residence-security-systems-utah

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U.S. Woefully Unprepared for a Blackout Like India’s: Analysis

Last week, India suffered two huge blackouts. Tuesday?s cut power to 370 million people; another one on Wednesday blacked out 670 million people, making it the worst blackout in the history of humanity.

Talking about this with a colleague, I said, "Don?t worry. That can?t happen here." "Why not?" she asked. "Because we don?t have 670 million people," I replied.

This wasn?t the comfort she was looking for.

The specific causes of India?s blackouts aren?t likely to be a problem in the United States. India?s electrical grid was brought down in part by state governments drawing more power from the grid than they were supposed to; American power grids are better managed. And while India?s grid has been strained by rapid economic growth, America currently faces no such problem.

But don?t get too comfortable. America?s grid has its own problems, and not enough is being done to address them. And, ironically, because American electric supplies have generally been pretty reliable, we?re in some ways worse-equipped to handle a major power outage than India is. That?s also something we should probably be doing something about, both at the national level and as individuals.

Modern civilization is astoundingly dependent on electricity. If the power goes out for very long, pretty much everything stops: water (you need pumps), gasoline (most gas stations don?t have backup generators to pump the gas), traffic (no stoplights), sewage (pumps again), and, eventually, even things like natural gas supplies (more pumps) and cellphone service (cell towers usually have backup power, but for most it?s only short-term). Stop the electricity for a day and it?s inconvenient; stop it for a few days and people die; stop it for a week or more over a big area and civilization itself is in peril.

The more advanced state of the U.S. grid is a mixed blessing. The ability to "wheel" power over long distances means that local problems can be ameliorated by power from elsewhere. But it also means that a failure in one area can, under the wrong circumstances, bring down service over wide areas. Modern smart-grid technologies currently being designed and deployed can make the power net nimbler and able to adapt more quickly to changes in loads. On the other hand, all that computerization makes the system more vulnerable to software bugs, viruses, cyber attacks, or even electromagnetic-pulse (EMP) damage from a solar storm or a nuclear attack.

Even worse: Americans aren?t as prepared for power outages as Indians are. In India?or Nigeria, where I have family?no one is surprised when the power goes out. As a result, everyone has a backup plan. Blackouts are so common that dealing with them isn?t really a backup plan at all?just part of the plan.

Here, that?s not the case. Most critical operations do have backup generators, and so do some not-so-critical ones (The law school where I teach has a gigantic Caterpillar diesel generator, even though an interruption in law teaching probably wouldn?t threaten the well-being of the community.) But coverage is surprisingly spotty. Some cellular carriers equip their cells with backup generators, but others don?t?and the industry successfully fought to kill an FCC requirement for backup power. Most gas stations don?t have backup generators, which means that in an extended power outage, the gas in your car?s tank (or in the cans for your gas-powered generator at home) is all the gas you?re going to have. So when extended blackouts hit, things are worse in the U.S., as people discovered recently when millions in the Washington, D.C., area were without power for days.

That means two things: First, we have to do what we can to harden our infrastructure to make the threat of blackouts less likely. Second, we should be prepared for the worst.

On the infrastructure-hardening front, approaches range from the obvious, like burying power lines likely to be brought down by storms and making sure there?s enough generating capacity to meet peak loads, to the less obvious, like ensuring that there are adequate stocks of important components (like transformers) to do disaster recovery. Keeping those stocks is hard, because the parts are expensive and nowadays often imported from overseas. Earlier this year, for example, power industry and Homeland Security engineers practiced bringing in and installing three "recovery transformers" in a test to see how quickly they could replace the big transformers found at power substations in an emergency.

The experiment was troubling: Although engineers have the technical skills to do the job, the transformers often have a two-year order horizon. The substation transformers are so big that they have to be shipped by rail, and to make things worse, rail no longer serves many areas where existing substations are found. So the U.S. is having to pursue alternative means: The "recovery" transformers split the task of one unit into three smaller ones that are easier to move. They?re also developing transformers that work in multiple applications, to reduce the number of different models that will have to be kept in stock.

Right now, if more than a few transformers were knocked out at once, the affected areas could be left without service for months or even years. These current efforts will reduce the time to recovery, but only if the U.S. begins maintaining sufficient stockpiles. That?s only the beginning: Other issues involve securing power-control and other utility hardware against hackers (current security is often embarrassingly poor) and the physical security of control centers and key components against sabotage or accident. Addressing these issues is important, because a major grid-down incident lasting weeks or months wouldn?t just be an inconvenience. It would be a catastrophe.

Stopping the power from going out should be our first priority, but it?s also smart to prepare for a "soft landing" when blackouts do happen. Here there should be two priorities: first, systems that fail gracefully rather than catastrophically; second, long-term backup power for critical systems.

Fortunately, failing gracefully is usually comparatively cheap. Battery backups for traffic lights may keep them going for only a few hours, but those few hours let people get home and off the roads where immediate failure might produce gridlock. Backups for mass-transit systems let people get off the train at a station instead of being stuck somewhere underground. Even a few hours of battery backup for cellphone service lets people respond to the outage and make plans with their loved ones and co-workers. (For families and businesses, having some sort of plan in advance is even better, of course).

For critical systems, the backup power needs to be robust and long-lasting. I?m talking about hospitals, phone/Internet providers, power plants (which need their own backup power to do the repairs), other utility companies, police, public-health facilities, and more. Many facilities with emergency generators rely on natural gas for power. That?s fine as long as the gas is working, but the gas company needs power to run its distribution systems. Many other generators have diesel or propane tanks, but those are often intended only for short-term use, with supplies adequate for only a few days. For the more important systems, we need to be thinking about longer time horizons and about ways to refuel them if they?re needed for even longer. You want the water and sewage systems to keep working even if the lights are out.

Where do people get food if the grocery stores don?t have power? For outages of a few days, this is a nuisance; for longer ones, it becomes a serious problem. Communities should have plans set up in advance.

So should individuals. At the low end of individual preparation, inexpensive solar/hand-crank radios provide information and usually will power an LED light and charge a cellphone. Stepping up, auto inverters or small generators can provide useful backup power for a few days. If you?re really serious, you can always put in a whole-house backup generator and power it from a buried propane or diesel tank that will last for days or weeks, though that becomes pretty pricey. Likewise, you want to be prepared to get by for a while if it?s hard to get food, water, vital medications, or other supplies.

Defense against blackouts and other dropouts in crucial infrastructure is best done in layers. On some of these, we can learn from India; on others, we will have to think for ourselves. Better that we do so sooner than later.

Source: http://www.popularmechanics.com/technology/engineering/infrastructure/us-woefully-unprepared-for-a-blackout-like-indias-analysis-11413652?src=rss

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সোমবার, ৬ আগস্ট, ২০১২

Ernesto at sea in Caribbean; new storm forms in Atlantic

MIAMI (Reuters) - Tropical Storm Ernesto kept on a westerly course in the Caribbean Sea on Saturday and will soon bulk up into a hurricane that may soak Jamaica as it passes by the island, U.S. forecasters said.

Officials in Jamaica issued a tropical storm warning as Ernesto moved in open waters at 18 miles per hour on a predicted track that should keep it at sea until a forecast landfall in Mexico's Yucatan Peninsula on Wednesday.

With maximum sustained winds of 60 mph, Ernesto on Saturday afternoon was 260 miles south of Santo Domingo in the Dominican Republic and was expected to stay clear of Jamaica and Hispaniola, the mountainous island Haiti shares with the Dominican Republic.

Tropical storm conditions would strike Jamaica on Sunday afternoon, while the southern coasts of Puerto Rico and Hispaniola will see squalls on Saturday, U.S. forecasters said.

Three to 6 inches were expected in Jamaica. Showers and thunderstorms - sometimes severe - were possible on the islands of Aruba, Curacao and Bonaire off Venezuela's northern coast.

"The center of Ernesto should pass south of Hispaniola tonight and south of Jamaica on Sunday evening," the U.S. forecasters in Miami said. "Ernesto is forecast to become a hurricane in the northwestern Caribbean in a day or two."

Ernesto, which did no reported damage on Friday as it passed over the tiny island of Saint Lucia, would be deemed a hurricane if its winds reach 74 mph.

Forecasters expect Ernesto to move into the southern Gulf of Mexico by Thursday but it was too early to know whether it could disrupt oil and gas operations in the gulf.

U.S. National Hurricane Center forecasters said another tropical storm, called Florence, formed on Saturday in the eastern Atlantic and was moving west in open waters. As of early evening, forecasters said, Florence was about 515 miles west of the southernmost Cape Verde Islands.

With maximum sustained winds of 50 mph, Florence was the sixth named storm of the Atlantic-Caribbean hurricane season, moving west at 15 mph, and was expected to track westerly before weakening next week.

August and September are usually the most active months of the Atlantic-Caribbean hurricane season, which runs from June 1 to November 30.

(Reporting By Michael Connor in Miami; Editing by Bill Trott and Jackie Frank)

Source: http://news.yahoo.com/ernesto-sea-caribbean-storm-forms-atlantic-004656973.html

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রবিবার, ৫ আগস্ট, ২০১২

Video: Senegal player lands flying kick to foe's face

Source: http://www.nbcolympics.com/video/soccer/senegal-defender-lands-flying-kick-to-face-of-mexican-player.html

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Industry News: Rowlings book withheld from most foreign publishers ...

Amid Piracy Concerns, Advanced Copies of JK Rowling?s New Book Withheld from Foreign Publishers

September 27 will be a good day to be able to read English, as US and UK audiences will be able to rush right out and buy JK Rowling?s new book, The Casual Vacancy. Publishers in France and Germany will get advanced copies. Everyone else has to wait. The Blair Partnership, Rowling?s literary agency, is withholding copies from non-English speaking publishers until the day of release to prevent unauthorized copies from finding their way to the public. Foreign publishers are concerned that the late release will cause them to develop poor translations, because of the rush to market. Rowling?s agent says that none of the?Harry Potter?novels were released worldwide at the same time, so this shouldn?t been that different.

What this means to you:?Piracy is still an issue that has to be resolved. In spite of some publishers removing digital rights management (DRM) software from their books, there?s still concern about theft of intellectual property.

HarperCollins Launches New Christian Imprint

Remember a couple weeks ago when this very blog said that when HarperCollins bought Thomas Nelson, they didn?t plan to combine it with Zondervan, which it already owns? Turns out that wasn?t exactly true. The two imprints will move into a single division, led by former Thomas Nelson CEO Mark Schoenwald. Former Zondervan CEO Scott Macdonald will leave his post. In the new organization, the two companies will operate as separate business units. The press release announcing the move says the new imprint will collaborate where appropriate, but otherwise compete with each other.

What this means to you: More consolidation in the Christian market. Maybe I?m wrong, but I can?t see these companies getting into an auction against each other for content.

Legal Costs Slice Simon & Schuster?s Earnings

Simon and Schuster?s sales rose three percent in the second quarter (ending June 30), but the costs associated with lawsuits related to their use of the agency model for e-books have eaten through all that increased revenue and then some. Lawsuit-related costs led to a $10 million drop in revenue for the quarter. Digital sales were strong, increasing 44% over last year?s second quarter, with total sales of $40 million. Sales were strong in all divisions with some softness in Europe. S&S was the third of five companies to settle with state attorneys general over the Apple collusion lawsuit.

What this means to you: Although S&S CEO Carolyn Reidy said the company had accounted for the legal costs, the settlement took a substantial piece of operating revenue. The cost associated with settlement could mean any or all of the following things: S&S figured the costs associated with going through with the suit would have been prohibitive, the odds of not losing the suit were small, the damages for the suit would have been substantial.

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Source: http://floridawriters.wordpress.com/2012/08/04/6617/

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KeePass


Most password managers integrate with your browser and aim to fully automate the process of capturing and replaying credentials for secure websites. KeePass (free), an open source tool, takes a rather different approach. While it doesn't automate capture of secure credentials, it can log in to websites using any browser and can also handle application passwords. It's also absolutely loaded with configuration options; a tinkerer's dream!

KeePass's wealth of options is noticeable right from the start. When you first create your database, you can choose to define a strong master password for encryption, use a file as the encryption key, or both. If the key file resides on a USB drive, you've just enabled two-factor authentication. In addition, if you never plan to use KeePass on a different PC you can lock the database to the currently active Windows account.

For extra security you can turn on the product's secure desktop option. With this setting active, when KeePass presents its master key entry dialog it suppresses other processes, to protect against keyloggers and other tracking tools.

KeePass can import from over 30 other password managers, including Kaspersky Password Manager 4 and RoboForm Desktop 7. The free LastPass 2.0 wasn't on the list, but I had no trouble exporting to CSV and importing that file to KeePass. Doing so did require that I match up the fields from my CSV file with field names in KeePass, but a preview window made it easy to see when I got the matchup right. Do note that any time you transfer passwords via a plain-text CSV file you should securely delete that file afterward.

By default your database is strictly local. You can move it to a USB drive for added security. Conversely, you can sync it to a URL online in order to use it across multiple PCs. Of course you must supply the online storage; it's a very do-it-yourself system.

Configurable Password Generation
Most password managers include a password generator. Most, like LastPass and RoboForm, let you choose which characters will be included. With next to no settings for password generation, Dashlane is an exception. KeePass's password generator deserves special attention for its flexibility.

With KeePass you can choose to include uppercase letters, lowercase letters or numbers. Where most password generators lump all the rest into "special characters," KeePass handles dash, underscore, and brackets separately from the rest. It can also optionally include the space character and "High ANSI" characters like ? and ?, if you find any applications that support them.

KeePass can generate hexadecimal keys of varying lengths, like those used for WEP and WPA authentication. It's even possible to define a pattern of character types that KeePass will match precisely. A preview tab displays a whole page of passwords matching the current pattern.

Source: http://feedproxy.google.com/~r/ziffdavis/pcmag/~3/_qDuOHYX3ec/0,2817,2408063,00.asp

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