No such thing as coincidence. All it takes is one Muslim here in the states to decide to do something. Since there are probably millions here I think it speaks to the fact that its the nut cases and not the religion. Just like it would not be fair to blame all christians for the nut case domestic terrorists we have here.
If 9/11, the bombings and shootings were Christians you better goddamn believe there would be screaming bloody murder by the left but since it's Islam all we get is moral equivalence, relativism, let's be careful, blah blah blah. The hypocrisy is so thick you could cut it with a knife.