> A few months earlier in the same airport, a tech engineer returning from a business trip to London objected when a federal agent asked him to type his password into his laptop computer. "This laptop doesn't belong to me," he remembers protesting. "It belongs to my company." Eventually, he agreed to log on and stood by as the officer copied the Web sites he had visited, said the engineer, a U.S. citizen who spoke on the condition of anonymity for fear of calling attention to himself.

https://boingboing.net/2008/02/07/tsa-confiscating-lap.html

Except in Israel the threat is real, and the security guards are actually competent