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Old 04-17-2013, 09:56 AM   #4
chrisinhouston
Professor
 
Join Date: Sep 2001
Location: Houston TX
Posts: 1,857
Yes, I agree about the seal on the pot being it's weak point but it is a clever device to use since it is designed to hold a great deal of pressure before bursting. I found this from a DHS memo from 2004:

Typically, these bombs are made by placing TNT or other explosives in a pressure cooker and attaching a blasting cap at the top of the pressure cooker. The size of the blast depends on the size of the pressure cooker and the amount of explosive placed inside.
Pressure-cooker bombs are made with readily available materials and can be as simple or as complex as the builder decides. These types of devices can be initiated using simple electronic components including, but not limited to, digital watches, garage-door openers, cell phones or pagers. As a common cooking utensil, the pressure cooker is often overlooked when searching vehicles, residences or merchandise crossing the U.S. borders
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