The headline of this story sounds like a strongly-worded response: S. Korea threatens ‘enormous retaliation’ after attack.  That is, until you get to the content and it says:

“South Korea’s president said Tuesday the country will unleash “enormous retaliation” if North Korea should attack again.”

I don’t think I’m the only person in the world who doesn’t believe that statement, considering how many attacks have come without a response.  I’m pretty sure the North Koreans have learned it.