Hey, whoever thinks it was a few psycho Americans, read this:

Today, an abandoned car in New York City was found with the Qu'ran(Think Arabic Bible...), several explosives, and long plastic weapons(Think resin knives...). At a Boston airport, a suitcase was found with another Qu'ran, a metal butcher-style knife, a manual on FLYING AIRPLANES, and A FUEL CALCULATOR...

Yep, saw it all on CNN today around 8 AM EST.