Snip from a NYT article

When two Indian men were arrested in Texas the day after the Sept. 11 terrorist attacks, the F.B.I. found that both had shaved most of the hair on their bodies. The Federal Bureau of Investigations interpreted the closely cut hair, and otherwise shaven bodies, as a possible sign that the men, Ayub Ali Khan and Mohammed Jaweed Azmath, might have been ready to die in a similar attack, and were "prepared to meet Allah," one bureau official said. This created suspicions, still unconfirmed, that the men, who carried box cutters and $5,500 in cash, might have been part of a failed hijacking team, officials said. The F.B.I.'s concerns about Mr. Khan and Mr. Azmath, who had flown out of Newark on the morning of the hijackings, grew after agents recovered letters instructing some of the suspected hijackers to "shave excess hair from the body" as they prepared for the suicide missions, the officials said.

-- Anonymous, October 25, 2001