N. Korea threatens strike after US-S. Korea summit

North Korea Stepping it up a bit , "a 100- or 1,000-fold retaliation with merciless
military strike", Sounds serious !
But really , who knows if little kimmie is ready to take that next step ?

Christian science Monitor

President Barack Obama appears to have convinced many South Korean
skeptics of the United States' commitment to the defense of South Korea
during his White House meeting Tuesday with South Korean President Lee
Myung Bak.

South Korea's defense ministry was quick to respond
with obvious relief, characterizing the promise of a continued "nuclear
umbrella" in the statement issued by the two presidents as "a warning
to North Korea."

North Korea followed up almost at once, vowing
in an editorial of "a 100- or 1,000-fold retaliation with merciless
military strike" if the US "and its followers infringe upon our
republic's sovereignty."

On that note, the summit – and the
response – opens a new phase of a confrontation that seems to worsen by
the day, at least in terms of rhetoric.