HOME GROWN TERRORISM is growing! It is a growing problem.

U.S. security officials have been warning for years that one of their biggest challenges is detecting homegrown terrorists — extremists who grow up in America, or have lived here for years, know the customs, speak the language, blend in easily and can fly below the radar of law enforcement.
As details of Boston bombing suspects emerge, reports point to two young men of Chechen origin who had been in the U.S. for up to a decade and were seemingly fully integrated into American society.


http://www.npr.org/blogs/thetwo-way/2013/04/20/177958045/boston-bombings-point-to-growing-threat-of-homegrown-terrorism