I sometimes wonder if perhaps ordinary (what word can I use?) Muslims simply dare not speak out against these monsters as they could be targeted anytime anywhere. A bit like the IRA during the troubles. These 'people' are very frightening, and as we see will literally stop at nothing, and it's a brave (foolish?) person who will put their family from the smallest baby to the oldest granny in mortal danger. I don't know, it's just a theory.
These poor men, it doesn't bear thinking about, but even an idea of what you do and how you handle it is beyond me.