Other attempts to reunite Koreas

During a four-day meeting, the South’s Unification Ministry failed to persuade North Korea to agree on a trial run for train service between South Korea and North Korea. Yet this does not prevent South Korea from continuing to try to to reunite the Koreas. I read this article from the AP posted on Yahoo News about Taekwondo grandmaster Woo Jin Jung who is trying to unite the Koreas through the Taekwondo diplomacy. He compared this to the 'pingpong' diplomacy during the 1970's that led to better relationship between the US and China. I wonder if this kind of approach will be better than the government officials in the two countries who can't even arrange train service.