Soccer of course.It's not AIG's bonuses,or the war in Iraq or the recession.It's simply because Americans are playing soccer.The creator of this remarkable piece of insanity is a Mr. Webb - a professor of religion and philosophy at Wabash College.His theory can be read here..
A quote : "..soccer is clearly an important means by which American energy, drive and competitiveness are being undermined to the point of no return."
Well the man is allowed to have an opinion I guess and thankfully he hasn't blamed aliens - yet.He just says that things are going to be fine if everyone in America stops playing soccer.
So now you know what to do.........!
I'm assuming your answer is "more research," at which point you would discover it was intended as satire ...
What a waste of my 5 minutes. It would have been worth it if it was funny.