What's going on: Some kids simply have oversensitive intestines, so that anything from a virus to normal gas can hurt -- and hurt for a while after it's passed. It's similar to the way that skin that's been burned can remain sensitive for a long time, explains Carlo Di Lorenzo, MD, chief of pediatric gastroenterology at Nationwide Children's Hospital, in Columbus, Ohio.
By the end of 1966, the United States had dropped more bombs on North Vietnam than it had dropped on Japan during World War II and more than it had dropped during the entire Korean War. Yet the bombing seemed to have little impact on the communistsâ ability to carry on the war.
Nixon ended American involvement in the war in Vietnam in 1973 and brought the American POWs home, and ended the military draft.