Explosive Tension in Korea

Here was a summit with an explosive twist. How better to enliven an otherwise boring if mysterious mission to China by the leader of North Korea than for the leader of South Korea to virtually pin the blame on the North for the sinking of a South Korean warship?

The key word is "virtually". President Lee Myung-bak has not quite formally accused North Korea of torpedoing the Cheonan, with a loss of 46 lives, while on routine patrol in the Yellow Sea on March 26. Rather, he's promised a "resolute" response, and his officials are saying they've now found a bit of an explosive that leaves no doubt North Korea was responsible.