You're using a broad brush stroke in order to describe a very specific event. Yes, there are lots of Muslim terrorist groups. There are also Christian terrorist groups. Just because there are far less doesn't mean they are any less culpable BASED ON THE INFORMATION WE HAVE.

Since we are all making wild accusations, why hasn't anyone blamed the Somali pirates for this? Or Hezbollah? What about Bengal Tigers of India? My point is, just because Islamic terrorists have used airlines against the US in the past for destruction doesn't mean that should be the automatic assumption from now on.