PYONGYANG, North Korea (AP) -- Democratic presidential hopeful Bill Richardson has arrived in North Korea for a rare visit by a prominent U-S official, but he says he won't be negotiating nuclear issues.Richardson's visit to the isolated country has been endorsed by the Bush administration and it comes days before a crucial deadline in the recent nuclear disarmament accord.The New Mexico governor says his delegation is there to recover the remains of U-S servicemen killed during the Korean War. But during the flight to Pyongyang, Richardson told The Associated Press that the timing of the visit is important and will show North Korea the good intentions of the U-S.There had been little progress toward fulfilling last month's breakthrough nuclear agreement because of a delay in the transfer of 25 million dollars in frozen funds back to North Korea. But the State Department says that glitch has now been resolved.