Charles Armstrong says North Korean attack confronts the world with difficult options . Sanctions have failed , military action could be disastrous ; talks the least bad choice , he says . Renewed dialogue between the United States and North Korea could reveal what combination of incentives might get the North to back down and eventually relinquish its nuclear capability -- and a nonnuclear Korean peninsula is the stated goal of all the parties in the six-way talks , including North Korea . Comment: Talks could reveal what it will take to get Pyongyang to abandon nukes , he says .
Charles Armstrong says North Korean attack confronts the world with difficult options . Sanctions have failed , military action could be disastrous ; talks the least bad choice , he says . Comment: Talks could reveal what it will take to get Pyongyang to abandon nukes , he says .