[Sacajaweau]

I'm gonna guess...simply a way to bypass a bomb sniffer..dog or device...

If this was out in the open...someone could/would/might have noticed it.

Were there any used for a food stop??

[Cboldt]

-- I'm gonna guess...simply a way to bypass a bomb sniffer..dog or device... --

Yes, it could have that benefit too. I was just pointing our or amplifying part of the story, that a "low explosive" inside a pressure cooker will make an explosion. That same "low explosive" out in the open will just burn.

-- Were there any used for a food stop? --

Unlikely.

But, thinking aout it, I know of an old fast food place that used pressure cookers. Chicken that was "broasted." I don't remember the name of the fast food chain.