South Korean Ship Sinking Update

A while back, we discussed the possibility that a North Korean submarine had attacked the South Korean corvette ROKS Cheonan (PCC 772) last month. Now that the ship has been raised, it's looking more and more like it was an external explosion that sank the Cheonan, with more people suspecting that a North Korean mini-sub of the Sang-O class was involved.

How do you think this will turn out? I'm thinking that the South Koreans might not do anything overt, but the North Koreans might find one or two of their submarines failing to return from patrol over the next couple of years. The big question is how the South Korean public reacts to the realization that the ship was sunk by the North, and how patient they'll be with waiting for retaliation.