After 45 years, ping-pong athletes who took part in a series of historic exchanges between China and the U.S. in 1971 and 1972 reunited at the University of Michigan in Ann Arbor, the first stop on the Chinese table tennis team's visit to the U.S. in 1972. [...] "I'm very excited and joyful to be here and meet my old friends today," said Liang. "If it wasn't for Ping-Pong Diplomacy helping to break the ice between the two nations, there wouldn't be as much exchange and communication between China and the U.S. today."