On Martin Luther King Day, I mused about how my relation to African-Americans has been shaped over the years. When I was a child, my father would sometimes take me into work with him on Saturdays. He was a physician at Johns Hopkins Hospital in Baltimore, where he ran a research lab (with real rats, whom I liked to watch cavorting in their cages). This was the early 1950s, well before the Civil Rights movement was making national news. Down... Read more