Gordon Chang, expert on U.S.-China relations, details how Beijing can ‘make life very difficult’ for firms involved in sale of Panama Canal from Hong Kong-based CK Hutchison to U.S.-based BlackRock. Gordon Chang, expert on U.S.-China relations, details how Beijing can ‘make life very difficult’ for firms involved in sale of Panama Canal from Hong Kong-based CK Hutchison to U.S.-based BlackRock.