Do NSA's Bulk Surveillance Programs Stop Terrorism?

A in-depth analysis of 227 individuals recruited by al Qaida or like-minded groups, and charged in the U.S. with an act of terrorism since 9/11, shows the contribution of NSA's bulk surveillance programs to these cases was minimal, and that traditional investigative methods were more helpful.

Click here to read our full report, "Do NSA's Bulk Surveillance Programs Stop Terrorists?" You may also click on the selected NSA-related plots below or browse all terror plots detailed on the site.

Investigated Individuals

229
Individuals charged with jihadist terrorism
60.3%
Traditional investigative methods
5.2%
Plots not prevented
26.6%
Unclear what method initiated investigation

NSA Investigations

1.7%
NSA bulk collection under section 215
4.8%
NSA surveillance under section 702
1.3%
NSA surveillance under an unknown authority