http://news.yahoo.com/s/ap/20100520/ap_on_re_as/as_skorea_ship_sinks

SEOUL, South Korea – North Korea warns that it will wage "all-out war" if punished for the sinking of a South Korean warship.

Investigators in Seoul said Thursday that evidence proves a North Korean submarine fired a torpedo that sank a South Korean naval ship on March 26.

The civilian and military investigation team included experts from South Korea, the U.S., Australia, Britain and Sweden.

North Korea's official Korean Central News Agency quoted a spokesman from the National Defense Commission as refuting the findings as a "fabrication."

The report says Pyongyang will react to any punishment or sanctions with warfare.

Ummm ... which part of this story are we supposed to be surprised by ... ? Remember, when this happened, the original suspicion was that the NoKos torped the ship ... since they say that any retribution against them will mean 'all-out war', it's time to start takin' 'em seriously and do what they don't expect: Introduce 'em to the marvels of how glass is made from elevated temperature and pressure using only simple ingredients like dirt 'n sand ... they'd never expect it from the 'paper tiger' ... oh - wait ... I forgot ... we ARE a 'paper tiger' now ... my bad.