I agree, but in the case of a single or a few fanatics, there's not much anyone can do. These types of people will use any excuse or none at all to harm others.

I agree, but in the case of a single or a few fanatics, there's not much anyone can do. These types of people will use any excuse or none at all to harm others. It's not limited to Muslim extremists. Take a look at the several shootings that happened these past few months, e.g. Sikh temple shooting and another failed attack at the Sikh temple, the crazy Aurora theater shooter, etc.