North Korea has deployed about 50,000 commandos along the inter-Korean border in an apparent show of force with the threat of rapid infiltration "suicide missions" against South Korea, a military source in Seoul said. The North "has completed the frontline deployment of seven light infantry divisions over the past two or three years," the source said, citing a joint study by South Korean and U.S. militaries. Each division consists of about 7,000 troops. A South Korean soldier keeps watch northwards on the south side of the truce village of Panmunjom in the demilitarised zone separating the two Koreas, north of...