(Korea has an election law requiring, roughly, no “negative campaigning”. There is a National Election Commission, who are not pushovers, to enforce it. Roh is up for election and is in pretty deep doo-doo with this National Election Commission and Roh’s competition is running with this ball for all they are worth. Looks to me that Roh is pushing to see if he can get the Commission to put heat his potential opponents and their supporters.)
To me, this event has more to do with N. Korea pushing its long-term plan, now that U.S. appears to be politically weakened. It has been their long-term plan to ignore S. Korea as a legitimate entity, and deal directly with U.S.. S. Korea is a puppet of U.S., according to official N. Korean view. In the process, they will try to drive a wedge between S. Korea and U.S. Ultimately, N. Korea wants to sign a peace treaty with U.S. and have American troops withdraw from S. Korea.
Now that U.S. is talking about the possibility of peace treaty, they are more than happy to push their long-term agenda. They must be really satisfied at this point.