These are no more than logistical areas that are put up. Plot the major ones on a map - much like I did with well known MSA in the 50 states (not the 57 Obama visited) and one can clearly see the concentration around the Northeastern part of the US and out in CA/Washington area in the Pacific.
Islam is a complete system - and is far more than just a religion....
http://babylonscovertwar.com/index.html
OK.