Researchers propose new experiments on mutant bird flu Scientists proposed developing a more potent strain of the deadly H7N9 bird flu on Wednesday to examine how mutant forms might spread among humans, a topic that has stoked global alarm in the past.
09 August 2013
Japan official alerts N. Korean missile instead of quake A Japanese official mistakenly announced the launch of a North Korean missile instead of sending an alert about a strong earthquake that hit western Japan on Saturday morning.
13 April 2013
US wary as N. Korea missile danger escalatesThe United States said it was taking "all necessary precautions" after North Korea rang fresh alarms in an escalating crisis by moving a medium-range missile Thursday to its east coast.