According to CNN, a US military official believes a torpedo was the most likely cause of the explosion that sank the Cheonan:
A North Korean torpedo attack was the most likely cause for the sinking of a South Korean warship last month, according to a US military official.
The US believes the ship was sunk by the blast of an underwater explosion, but that the explosive device itself did not come in contact with the hull of the South Korean ship, the official said.
This is the same conclusion expressed by South Korean military officials.
And that’s the entire report. I was hoping for something a bit more substantial, but that’s it.
Defense Minister Kim Tae-young apparently believes a “bubble-jet impact” — caused by a torpedo — broke the ship in half. For a full analysis of North Korean heavy torpedo capabilities, see this piece in the Korea Times.
In the meantime, not that I’m the Hankyoreh, but I’ll wait for something conclusive before I jump on the vengeance bandwagon.