In Yahoo news: Why no mention of certified organic fruits and vegitables in an effort to prevent cancer?

Although I applaud the message in this article on Yahoo a href="http://health.yahoo.com/-cancer-awareness-2007/healthyapproach/499/4-foods-to-fight--cancer"http://health.yahoo.com/-cancer-aw…/a I am dumbfounded why there's no inclusion of the benefits of pesticide-free certified organic fruits, vegitables, and grains. How could they leave out what might be the cause of just as much cancer as a lack of fruits and vegitables?