Personally, when I hear "Black Flag" I think of that brand of bug spray (which if you lived in south Florida you would know what I'm talking about), and I would like to use some bug spray on these al-Qaedic bugs.
An interesting factoid is that people who wear black turbans are entitled to do so because they are "descendants of the Prophet Mohammed". Now, considering that
the false-prophet Mohammed had 11 wives at any given time (and I have seen a list of 23 women he was married to in toto) inluding the little 6-year-old girl Alyesha;
AND that he owned 28 slaves, 17 of whom were women;
AND that he also probably had a number of concubines;
AND that he was not above raping other women and was well-known for his energy;
..... I am surprised that we don't see all 1,000,000,000 Muslims wearing black turbans.