Fighting the flu with ultraviolet light

As the deadly flu season continues, a doctor is working on technology that uses ultraviolet light to kill the flu virus in the air. CBS News chief medical correspondent Dr. Jon LaPook explains why this technique is safer than using regular UV rays. Subscribe to the “CBS Evening News“ Channel HERE: Watch Full Episodes of the “CBS Evening News“ HERE: Watch the latest installment of “On the Road,“ only on the “CBS Evening News,“ HERE: Follow