North Korea has successfully tested new short-range missiles and is close to making them operational, posing a threat to South Korea and Japan, a senior US defence official said. Yonhap news agency quoted Richard Lawless, outgoing deputy undersecretary of defence as saying: “We have a problem with the new system because it’s much more accurate, it’s much more survivable than the huge Scud force … already targeted on (South Korea).” Full Story