US, Japan defence chiefs vow close ties amid tensions between Tokyo and Beijing. Also on East Asia Tonight: Japan lifts tsunami warning after magnitude 6.7 earthquake struck in region hit by a major tremor just days ago; and Hong Kong says it will make known all details of a probe on the Tai Po fire that killed at least 160 people. 00:00 Headlines 01:41 US, Japan defence ministers criticise Chinese military actions 06:10 Japan lifts tsunami warning 07:28 Hong Kong fire probe to conclude in nine