Chemical Milk?

In my opinion, despite the recent articles in the daily newspapers, milk is not as safe as we are led to believe. Cows are fed grains that have been filled with chemicals. Growth Hormones, antibiotics and so forth. The grains themselves may have even been grown with pesticides. Researchers (probably from the milk industry) are now saying that these chemicals do not pose any threat to milk consumers. We are told the link to puberty changes in pre-teens is not related to the chemicals in milk. I pose this thought, if drugs and chemicals are to be avoided by breast feeding women (because of the harmful effects that will be passed on to the baby), how come the cows that ingest drugs cannot pass on the harmful effects to the milk consumer? What to do? Buy certified organic milk. Drug and chemical free, which also tastes better too.