oh well here we go again.
come ON people, just because you see two or three idiots with conflicted allegiances, don't extrapolate that to a whole category of folks. that would happen to a faulty syllogism - and the definition of prejudice. and it wouldn't be new, either.
medieval historians blamed the fall of rome on early christians, reasoning that their preoccupation with salvation and the next world made them poor citizens in this one. and let's not forget all the suspicion that has been (and, in some circles, still is) heaped on the jews for the very same thing: "oh, their group identity is so important, it comes before being good americans/frenchmen/nazis/fascists/(insert other elitist identification here)."
some people in our great country do this EVERY frickin' time we have an enemy abroad: in WW I, german-american "krauts" couldn't be trusted. don't forget sacco and vanzetti; they were shadowy italians AND communist party members, and lord knows you can't be a commie and love america, right? then in WW II we just HAD to intern those dirty japanese americans, else they might sabotage the war effort. and russian-americans - let's not even start.
i'll tell you what: out of every group mentioned above, there's a bunch that you could say are a real threat to our safety and un-american, and you'd be right. every doctrine, even and especially your most sacred, has its crazy a$$holes. as a jew, i can think of a handful of americans off the top of my head who had no qualms spying for israel AGAINST us! but to blanketly assert that "jews are generally disloyal, and probably bad servicepeople" is just flat-out racist. it just so happens that, instead of jews or germans etc., anti-islamic and anti-arab racism are chic again.
(as anti-american racism, by the way, is over there, too - you just KNOW they're saying the same thing over there: "i don't trust an american to head the UN or a humanitarian coalition, they're all imperialists.")
oh, and in case you're interested, i happen to know firsthand a michigan NROTC grad, now a submariner, who is muslim and of arab heritage. he is more mom and apple pie than you would ever believe, and if you want to call him anything, you call him "sir".
just do yourselves a favor: learn about islam from the sources - the texts, the histories, and the adherents, who are all around you. try not to get all your info from hannity, colmes, o'reilly, scarborough, savage, or all those "good" americans.