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US wary as N.Korea missile danger escalates

A soldier from the US Army's 23rd Chemical Battalion wears protective gear, at Camp Stanley in Uijeongbu, north of Seoul, on April 4, 2013. The US said it was taking "all necessary precautions" after N.Korea rang fresh alarms in an escalating crisis by moThe 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 to its east coast.