Hmmm...their fruits? One does not go around converting others to Christianity if one is trying to destroy Christianity.
Their objective could be much larger than ‘just a few converts’.
From my limited exposure to these Islamist’s, I predict these guys will be numerous and big in the Christian church, and that their first, but hidden, loyalty will continue to be to Mohammad.
And how can you deny that that might be true if, in fact, they are lying to us, and you, infidels?