Society as a whole is really trying to please the lowest common denominator. In the past if someone made an obvious joke and then someone else got "offended" or "afraid" from it they would have been instantly scolded for being a bit dim and to be on their merry way.

But these days it seems like we're in "offense wars" where we must protect everyone's delicate sensibilities because offending or scaring a stupid person is almost a crime in its own right (see parents who run around attacking photographers who steal their kid's souls with cameras).

When has someone overhearing a joke at the airport ever prevented a terrorist attack? Never is the answer. Just stupid people complaining and stupid people "following orders" and conducting a completely disproportionate investigation into something everyone knows for a fact won't lead anywhere. "See something report something" is just a moronic as "stranger danger" and all of those sayings. Use common sense. Think about things. Stop being sheep.