That map is old, and needs an update. For example, where's Lashkar-e-toiba on that map?
http://www.csmonitor.com/2005/0810/p02s01-ussc.html
Are terrorist cells still in the US?
This is the second map published by Steve Emerson. The Mosque's are popping up faster then a map can be made.
Scary, isn't it?