Terror database has quadrupled in four years

Each day, thousands of pieces of intelligence information from around the world - field reports, captured documents, news from foreign allies and sometimes idle gossip - arrive in a computer-filled office in McLean, where analysts feed them into the nation's central list of terrorists and terrorism suspects.

Called TIDE, for Terrorist Identities Datamart Environment, the list is a storehouse for data about individuals that the intelligence community believes might harm the United States.

At the Washington Post.

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