National Security Agency chief says NSA has prevented “dozens of terrorist events” Sens. Ron Wyden and Mark Udall: NSA’s bulk phone records collection program helped thwart ‘dozens’ of terrorist attacks. They say all of the plots that Alexander mentioned appear to have been identified using other collection methods. A survey of all the jihadist terrorist plots in the United States since 9/11 shows that traditional law enforcement methods have played the most significant role in foiling terrorist attacks, the New America Foundation says.”]
Source: https://edition.cnn.com/2013/06/17/opinion/bergen-nsa-spying/index.html