Whats the Straightdope on...hypnosis?

In a recent Mythbusters show, they were testing hypnosis. I was wondering…whats the straightdope on this? I always THOUGHT it was a bunch of BS…sort of like all that alternative medicine stuff. But they SEEMED to be saying that, at least wrt a memory aide (they basically staged a scene then used hypnosis to supposedly get more details out of the cast than they saw without the hypnosis) that it was…confirmed??

I think this is a link to the Discovery site where you can take the supposed test yourself and see the results the cast got.

At any rate…whats the deal?

-XT

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