Introduction to National Security Division Statistics on Unsealed International Terrorism and Terrorism-Related Convictions [open pdf - 2MB]
"The National Security Division's International Terrorism and Terrorism-Related Statistics Chart tracks convictions resulting from international terrorism investigations conducted since September 11, 2001, including investigations of terrorist acts planned or committed outside the territorial jurisdiction of the United States over which Federal criminal jurisdiction exists and those within the United States involving international terrorists and terrorist groups. Convictions listed on the chart involve the use of a variety of Federal criminal statutes available to prevent, disrupt, and punish international terrorism and related criminal activity. The convictions are the product of the Department's aggressive, consistent, and coordinated national enforcement effort with respect to international terrorism that was undertaken after the September 11, 2001 terrorist attacks."
United States Department of Justice: http://www.justice.gov/