Free device to help stop drunk driving

      A London-based distillery is attaching single-use breathalyzers to its packages of mixed drinks this week.
     The co-founders of Black Fly Beverage Company say the tiny, crystal-filled tube-like devices could help stop people from driving drunk.
     Rob Kelly and Cathy Siskind-Kelly -- who started the company 14 years ago -- say they found out about the Alco-grad breath test while         on a visit to the United States.
     They say the tiny device is manufactured in Toronto and endorsed by MADD Canada.