War in the nuclear age

So, let me see if I understand this correctly. North Korea fires a torpedo and sinks a South Korean ship, clearly an act of war.
In retaliation, the South will put up loud speakers and yell nasty things and put up signs that have more nasty things about Kim Jong Il.

BBC News - Inter-Korean crisis: Propaganda fight

The North is eve more upset because they're scared of loudspeakers.
What's next? An escalation of taunting?

via YouTube - French Taunting - Monty Python and the Holy Grail