One of the clearest signs yet al-Qaeda was behind the attack.

Via Daily Mail:

The two bombs that killed three people and injured at least 176 at the Boston Marathon on Monday were made from six-liter pressure cookers crammed with shards of metal, nails and ball bearings and stashed in black backpacks, police sources revealed today.

The cruelly-designed bombs have ‘frequently’ been used in Afghanistan, India, Nepal and Pakistan, according to a 2010 Homeland Security Department pamphlet – hinting at the origins of the bombers behind the worst terrorist atrocity in the U.S. since 9/11.

Although no group has yet claimed responsibility for the attacks, similar devices were used in the failed 2010 attempt to bomb Times Square by Faisal Shahzad, who admitted he had undergone bomb-making training at a militant Islamist faction camp in Pakistan.

A pressure-cooker bomb is also a preferred weapon of al-Qaeda and listed as the ‘most effective’ weapon of jihad, according to an English-language terror magazine called Inspire.

Via Washington Examiner:

Rep. Peter King, R-N.Y., noted today that al-Qaeda’s magazine, Inspire, gave instructions on how to make the pressure cooker bombs used in the attack on the Boston Marathon yesterday.

“My understanding is that those pressure cooker-type bombs were described years ago in Inspire, the al-Qaeda magazine,” King, chairman of the House Homeland Security subcommittee, told MSNBC’s Andrea Mitchell, per a rush transcription.

http://weaselzippers.us/2013/04/16/press...m-to-followers/

Are we sure this was an explosive devise or just a cooking mishap. My Grandmothers pressure cooker looked like this after she made a chicken. She was a really lousy cook.

Quote: Eglman wrote in post #1

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One of the clearest signs yet al-Qaeda was behind the attack.

Via Daily Mail:

The two bombs that killed three people and injured at least 176 at the Boston Marathon on Monday were made from six-liter pressure cookers crammed with shards of metal, nails and ball bearings and stashed in black backpacks, police sources revealed today.

The cruelly-designed bombs have ‘frequently’ been used in Afghanistan, India, Nepal and Pakistan, according to a 2010 Homeland Security Department pamphlet – hinting at the origins of the bombers behind the worst terrorist atrocity in the U.S. since 9/11.

Although no group has yet claimed responsibility for the attacks, similar devices were used in the failed 2010 attempt to bomb Times Square by Faisal Shahzad, who admitted he had undergone bomb-making training at a militant Islamist faction camp in Pakistan.

A pressure-cooker bomb is also a preferred weapon of al-Qaeda and listed as the ‘most effective’ weapon of jihad, according to an English-language terror magazine called Inspire.

Via Washington Examiner:

Rep. Peter King, R-N.Y., noted today that al-Qaeda’s magazine, Inspire, gave instructions on how to make the pressure cooker bombs used in the attack on the Boston Marathon yesterday.

“My understanding is that those pressure cooker-type bombs were described years ago in Inspire, the al-Qaeda magazine,” King, chairman of the House Homeland Security subcommittee, told MSNBC’s Andrea Mitchell, per a rush transcription.

http://weaselzippers.us/2013/04/16/press...m-to-followers/

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The pressure cooker is the container, it is not an explosive, the news media is so poorly educated. It would seem to me if the attackers had wanted massive death, they would have used a claymore style device. Anyway what was the explosive used?