North Korean artillery units are displayed during a military parade in Pyongyang in April 2012. North Korea's new constitution proclaims its status as a nuclear-armed nation, complicating ... more 

North Korean artillery units are displayed during a military parade in Pyongyang in April 2012. North Korea's new constitution proclaims its status as a nuclear-armed nation, complicating international efforts to persuade Pyongyang to abandon atomic weapons, analysts said Thursday less