LETTER from MAUREEN DILL Americans Should Know Where RXs Come From To the Editor: I’m writing to you about my concerns regarding the fact that the majority of our prescription medications (as much as 90 percent, I’ve been told) are manufactured outside of the U.S. – primarily in China and India. Many of us are interested in “sustainability,” and this, I believe, is related to our sustainable future! Having “Googled” this subject, I’ve also read that the welfare of the…