Salvaging Our North Korea Policy.... By JOHN R. BOLTON There are signs, albeit small ones, that the Bush administration may be reaching the end of its patience with the Six-Party Talks on North Korea's nuclear weapons program. These signs could prove illusory. But as it nears its end, the administration has a serious responsibility: It must not leave its successor with an ongoing, failed policy. At a minimum, President Bush should not bequeath to the next president only the burned-out hulk of the Six-Party Talks, and countless failed and violated North Korean commitments. Since they were conceived in spring 2003,...