WASHINGTON/BEIJING - Brief smiles and handshakes by U.S. and Chinese military leaders at a luxury hotel in Singapore on Friday belie a deep freeze in communications between the two armed forces that is becoming a growing worry at the Pentagon. U.S. Defense Secretary Lloyd Austin had sought a proper meeting with his Chinese counterpart at the annual Shangri-la Dialogue but Beijing refused. Instead, the retired U.S. Army general had to settle for a quick exchange at a dinner ahead of a weekend full of meetings among Asian military leaders. The awkward encounter is just the latest example of what U.S. officials and analysts say is a troubling disparit...Keep on reading: China’s snub of U.S. military leader highlights escalation risk