We know that fighting the illegal drug trade is tough, and often dangerous, work. Smugglers are crafty, and determined. But so is the Drug Enforcement Administration, which has a vast array of tools in its arsenal to fight the smugglers.
Despite its inability to pass its own security tests, the TSA is keeping a sharp lookout for terrorists during the summer travel season. Really sharp. Among its many techiques for keeping us safe is monitoring the behavior of passengers who go through the security check points. The video nearby contains actual examples of what TSA agents have been trained to look for.