This past week, 60 Minutes had a story on the (lack of) quality of the data on the national "No-Fly" list. Apparently (just as all of you thoughtful readers should have already expected), the list is rampant with names of dead people (including 14 of the 19 9/11 hijackers) and people unlikely to be traveling (e.g., Saddam Hussein and convicted and jailed terrorist Zacarias Mousaoui). In addition, the limited identifying information on the list causes increased scrutiny of those whose identities are falsely matched positively to names on the list.
Actually, the deficiencies in the quality of the data managed by the Terrorist Screening Center had already been discussed in a report issued by the Department of Justice over a year ago, in which a "major Quality Assurance effort" was put underway to "ensure that records of highest priority for correction are addressed by a record-by-record search."