gulag

I recently finished the book Gulag: A History, by Anne Applebaum, about the system of concentration camps in the Soviet Union. The camps were spread all over the Soviet Union, and held political and criminal prisoners -- often under appalling conditions. The story made me think hard about Nazi Germany, slavery in the Americas, and other terrible things that humans have done to each other over the years. The book, published in 2003, was a winner of the Pulitzer Prize.