President George W. Bush is fond of comparing himself to Ronald Reagan. But as he meets with South Korean President Lee Myung-bak in Washington this week, his policy regarding North Korea's nuclear weapons program looks more like something out of Bill Clinton's or Jimmy Carter's playbook. In dealing with the Soviet Union on arms control, Reagan was famous for repeating the Russian phrase, "Doveryai, no proveryai" (trust, but verify). Soviet President Mikhail Gorbachev reportedly once complained to Reagan, "You use that phrase every time we meet." To which Reagan smilingly replied, "That's because I like it so much." This administration...