In response to the FOIA-forced release of a whole slew of embarrassing documents, the director of the office in charge of the Defense Department's TALON anti-terrorist database admits that it's been used on occasion as... well, an anti-protester database:

Mr. Baur said that those operating the database had misinterpreted their mandate and that what was intended as an antiterrorist database became, in some respects, a catch-all for leads on possible disruptions and threats against military installations in the United States, including protests against the military presence in Iraq.

"Misinterpreted their mandate" indeed. (I suspect the ACLU is unsympathetic.)