North Korea says it plans to launch a rocket carrying a satellite this month . Other countries say the launch is a cover for a ballistic missile test . Hill : U.S. will work closely with its regional partners to resolve the crisis . The collapse of an earlier deal hints at internal struggles in North Korea , Hill says .
North Korea says it plans to launch a rocket carrying a satellite this month . Other countries say the move is a cover for a ballistic missile test . Hill : U.S. must work closely with its regional partner to resolve the crisis . The collapse of an earlier deal hints at internal struggles in N. Korea , Hill says .