'No fly' no go: airline security follies.

• Author: Sullum, Jacob
• Position: Citings

IN 2010, nearly a decade after the 9/11 attacks brought home the importance of keeping suspicious characters off airplanes, the Transportation Security Administration (TSA) hopes to launch a new system for distinguishing between harmless passengers and terrorists. If all goes well.

Two earlier efforts, involving databases with detailed information on everyone who flies, were scrapped largely because of privacy concerns raised by civil liberties groups. But the TSA has been working on the latest version for four years, and it still has not found a way to reliably tell one David Nelson from another or to distinguish between T. Kennedy, the alias used by a man suspected of ties to terrorism, and Ted Kennedy, the U.S. senator. The Massachusetts Democrat is one of many travelers who have been repeatedly hassled or prevented from flying because their names resemble those of people on the watch list, which is supplied by the government but checked by airlines.

Skeptics such as security consultant Bruce Schneier argue that checking passengers' names against a "no fly" list will always be more trouble than it's worth, given the unreliability of the information...