Forget fingerprints and eye scans, your next password could be your brain -- or your heart beat.<img src="http://feeds.feedburner.com/~r/DiscoveryNews-Top-Stories/~4/V74Z_he2MG8" height="1" width="1"/>
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Forget fingerprints and eye scans, your next password could be your brain -- or your heart beat.<img src="http://feeds.feedburner.com/~r/DiscoveryNews-Top-Stories/~4/V74Z_he2MG8" height="1" width="1"/>