On this week's episode of Scientific American's science news roundup:No one's saying games cause aspergers, but it made the headlines anyway; a scientist claims there are no E.T.s, but no one really believes him; and no one's going to win PETA's X-prize for lab meat, we promise.Subscribe to this video podcast via iTunes or RSS.
Videos from Sciam.com, the online news service of Scientific American magazine.