BWF - because we believe in the rights of people to believe in what they want to believe in so long as they don't kill anyone/persuade others to kill folk because of it. However, it is very difficult to tell the difference between someone who is a perfectly sane, rational and is a good "allah fearing" muslim (as opposed "god fearing" christian) vice someone who believes that anyone who isnt the aforementioned should be reduced to small pieces via the medium of a large bomb.
However, the right of said allah fearing muslim to believe in what he wants to believe in is sufficiently important that we'll happily take the chance (and let's face it, it's a very very very slim chance!) that he's the latter type in order to allow him his rights. Fair play I say.