If we can put a man on the moon, why can't we detect when someone is lying?

Just as the space program seemed to be just the thing for combating communism during the Cold War, lie detection looks like just what we need in the fight against terrorism. The popular press, including Wired magazine, has been pretty optimistic that a high-tech replacement for the archaic and mistrusted polygraph machine is coming soon.

Last weekend, Stanford Law School hosted a workshop called "Reading Minds: Lie Detection, Neuroscience, Law and Society," where attendees took a closer look at the technology -- a look that suggests we're still light years away.