South Korean soldiers ride in a military truck near the demilitarized zone separating the two Koreas...
South Korean soldiers ride in a military truck near the demilitarized zone separating the two Koreas in Paju, about 45 km (28 miles) north of Seoul, May 30, 2009. Initial U.S. testing to determine whether North Korea fired a nuclear device on Monday proved "inconclusive," said a U.S. official on Friday. REUTERS/Kim Kyung-Hoon (SOUTH KOREA POLITICS MILITARY)