SILVER SPRING, MD: Discovery Communications announced May 11 that it appointed Chance Patterson VP of international communications, effective immediately. He is responsible for developing and implementing all communications strategies for Discovery Networks International and is providing communications counsel to the company's leadership team. Patterson reports to David Leavy, EVP, corporate affairs and global communications. Patterson most recently worked as VP of corporate communications and public affairs at Sirius XM radio. He also previously served as director of government relations and strategic ...