A Venn Diagram Of Terrorist Watch Lists

[JaneyVee]

T.I.D.E.

Tamerlan was first placed on TIDE, a massive database controlled by the National Counterterrorism Center, after an FBI interview based on a tip from Russian authorities in 2011 that Tamerlan had become radicalized. The latest information about the size of TIDE's database is from 2008, when it contained more than 540,000 names representing about 450,000 real people (multiple spellings of names inflate the overall number).

Terrorist Screening Database

The next list Tamerlan found himself on, according to Hosenball, was the Terrorist Screening Database, a declassified version of TIDE with fewer details about individual suspects. According to the Washington Post, the Terrorist Screening Database contained more than 400,000 unique names as of 2009. Around the time Tamerlan was placed on this list, he was also placed on a list managed by the Homeland Security Department's Customs and Border Protection bureau, which flagged Tamerlan's visit to Russia in January 2012. Hosenball suspects that this didn't trigger an alarm because the "FBI had not identified him as a threat after the interview."

Selectee List

The Selectee List is significantly smaller than the previous two (14,000 names) and calls for mandatory secondary screening at airports. Tamerlan was not placed on this list, according to Hosenball.

No Fly List

Even smaller is the No Fly List, which, as of 2011, included about 10,000 people. According to NPR, the No Fly List is for passengers who authorities believe threaten the plane or could be "traveling somewhere to commit a terrorist act or went to a terrorist camp." No one is told whether they're on the No Fly List, so people don't typically find out until they arrive at the airport. By all accounts, Tamerlan was not on the No Fly List.

Disposition Matrix aka WH KILL LIST

This is the list you really don't want to be on. No one knows exactly how large the Disposition Matrix is, but it's the second iteration of the White House kill list and it "spells out the intelligence on targets and various strategies, including contingencies, for handling them," according to reports. For some, "handling" includes a lethal drone strike. Tamerlan is not believed to have been on the matrix.

Source: http://blog.foreignpolicy.com/posts/2013/04/24/a_venn_diagram_o_tamerlan_tsarnaev_terror_watch_lists