It's not Islam, it's extremism in general, that is such a crock and that does a disservice to the people of America to make us sound like we're a bunch of idiots that we can't see what's going on in front of us and we're too weak to tell the truth.
Islam is an ideology and there's a religious component to it that's radicalized and in some cases it masks itself behind that religion, especially in America, because of freedom of religion.
There are Muslims, who are moderate Muslims. And there's more of them than there are radicalized Muslims and are using Islam in its misinterpreted ideology.