March 21, 2012 7:04 am Can Aspirin Prevent Cancer? Research shows that a daily aspirin may help prevent and possibly treat a variety of cancers. US & World Videos 2:23 Watch: Feeling and showing the impact of organ donation 1:07 Watch: Autism specialist discusses rise in children on the spectrum 1:10 Bay Area app monitors problems for people living with Parkinson's 1:43 Traces of bird flu virus found in 1 in 5 samples of pasteurized milk, FDA says 2:42 Mother, surrogate celebrate a perfect ending to their long journey