This picture taken on May 14, 2014 shows a Vietnamese coast guard officer looking towards a Vietnamese Coast Guard ship sailing near the area of China's oil drilling rig in disputed waters in the South China Sea. Vietnam is experiencing its worst anti-China unrest in decades following Beijing's deployment of an oil rig to disputed waters, with at least one Chinese worker killed and more than 100 injured.  AFP PHOTO / HOANG DINH NAM        (Photo credit should read HOANG DINH NAM/AFP/Getty Images)