If I had been asked this question 20 years ago, I would have gently explained that kids are clean — they haven’t had time to accumulate toxins or sully their health with the usual culprits associated with smoking, drinking and partying.  However, sadly, we have all heard the news stories about noxious chemicals — many never properly tested by the FDA — found in breast milk.  States all over the country are mounting legislative actions to ban BPA and phthalates and flame retardant chemicals