Let's assume that human nature remains the same and people continue making inappropriate or insensitive jokes about bombs, including in private, in their homes, while having dinner and such. Do we just ignore stupid jokes? Or do we always (zero tolerance!) in every case lock down the street, pretend as if bin Laden himself has risen from the grave, even when no threat has in fact been made.
Personally, I don't want to live in a country where I have to watch my words in private lest a police officer or busybody be walking by and decide to stop all commerce for a few hours.