Because we have become a fast-food nation filled with lazies and pu$$ies. Instant gratification is all anyone is worried about. Hands-out rather than hands-on.
Maybe. I personally think it is because of the money that media generates and the need to hold the attention of the audience you are targeting. Combine that with the recent 2008 financial collapse, the extremism (real or perceived) of the president and the global finance situation (which is probably fanned by the media) and you get the recipe for extreme thoughts, which in turn leads to extreme actions.