The bomber didn’t want to cook in it. He just wanted a large, sealable metal container to build his bomb in. A pressure cooker would up the explosive power of the bomb and also keep bomb-sniffing dogs from smelling it.
And wouldn’t the desired effect be sort of like a pipe bomb?
Doesn’t the pressure cooker work kind of like a pipe bomb(what I’ve heard...not a bomb person here...) in that it would add a great deal of force to whatever it was packed with on exploding?
Ah, that’s why the dogs wouldn’t have discovered the bombs. Makes a good cover so the DHS could say they were vigilant and yet the bombs still go off without being detected.
Sounds crazy, I know, but every time there is a terrorist attack there is a counterterrorism “drill” going on at the same time in the same place for that particular kind of attack, and it never stops anything from happening. Whole lotta coincidences there.