You can't see it or feel it, but your life depends on tiny chemical `coin'

February 01, 2007 06:00 AM

UPDATED May 25, 2007 01:41 AM

More Videos

  • New ad tells Alabama voters to write in Nick Saban for special Senate election

    A new ad released by American Bridge 21st Century is telling GOP voters to write in Nick Saban for Alabama's special Senate election.