60 Terrorist Plots Since 9/11: Continued Lessons In Domestic Counterterrorism
At 2:50 p.m. on April 15, 2013, two explosions went off at the finish line of the Boston Marathon. The brazen terrorist attack killed three people, injured and maimed hundreds more, and shocked the nation. Despite being long recognized as a potential threat by law enforcement and intelligence, few Americans had considered the use of an improvised explosive device (IED) on American soil. And, due to only a few, and relatively small, attacks since 9/11, the public was not in a state of awareness.
Source: heritage.org
