Bullshit. A pressure cooker is probably one of the most common kitchen accessories ever. Anyone who planned to use one for malicious intent would just deny that they have one.
So are a bunch of other materials used in household bomb-making. Doesn't preclude the cops from asking about them, especially if you got flagged as a potential bomb-maker because you posted about explosives on Facebook or something.
I'm sorry I can't tell if your response is written in a joking manner or if you are serious but while reading it I got this funny visual of a cop responding to a routine noise disturbance by asking the offending homeowner "any pressure cookers in the house?"
