How to Spot a Terrorist

I’m sure Letterman has already gotten plenty of mileage out of this one, so I’ll just flat-out report it.

According to an Associated Press story, in light of the London attacks, the NYPD issued a memo late last week to its officers on what sorts of suspicious behavior to look for on NYC subways, trains and busses. Commuters are also being urged to be vigilant about reporting any signs of trouble. Here’s what to look for among your fellow passengers:

• clenched fists. “In past attacks, suicide bombers have used explosives that require them to maintain pressure on hand-held triggering devices until detonation, police said.”
• nervous feeling under or patting down of his or her clothes.
• excessive use of cologne. It could be a sign of someone trying to mask the scent of explosives.
• profuse sweating.
• avoidance of eye contact.
• mumbling or chanting.
• wearing clothes unsuitable for the temperature, such as a coat in summer.