So Judy and I are sitting outside the PET scan unit in the Mays Clinic in the Medical Center, waiting for Judy's scan. We'd overheard someone saying that they were running behind schedule, but we didn't hear why. Then a large group of people came out of the PET scan unit. Lots of them wore dark blue suits. As the last of the people came out, one of them waved at me and Judy. It was John McCain. Maybe he was in town to learn something about health care. He didn't stop to chat with us, though.