On August 29, the North Korean government released four South Korean fishermen whose boat had strayed into Northern waters a month earlier. The return of the crew came shortly after the freeing of a South Korean manager in the Kaesong industrial zone, detained in March for making derogatory comments about the paradise formally known as the Democratic People's Republic of Korea. And early last month, Kim Jong Il, the North Korean supremo, personally pardoned two American journalists accused of spying and allowed Bill Clinton to take them home.

The release of the hostages was accompanied by overtures to both the United States and South Korea, Pyongyang's two main adversaries. First, in an unmistakable sign it wanted to talk, the North sent diplomats to New Mexico, whose governor, Bill Richardson, they consider a trusted interlocutor. Days later, North Korean envoys traveled to Seoul for the funeral of former president Kim Dae-jung, carrying a message from Kim Jong Il to South Korea's current leader, Lee Myung-bak.

While Pyongyang is suddenly showing its best side, prior to August, it had revealed its worst. In the first months of this year, it was issuing almost daily threats against South Korea. Then, beginning in early April, it launched a long-range missile, detonated a nuclear device, announced the resumption of plutonium production, terminated the Korean war armistice, and launched cyberattacks on South Korea and the United States.

The about-face coincides with an apparent recovery in the health of Chairman Kim, who looked surprisingly robust in the pictures of him interacting with, and apparently lecturing, Clinton and his delegation. It is tempting to conclude Kim has wrested power back from his generals, who appeared to be in command in the early part of the year when Kim looked as if he were dying.

Kim's resurgence has predictably given new life to calls for renewing our engagement with Pyongyang. "As North Korea experts know, the country has long wanted to improve relations with Washington," wrote Han Park, a University of Georgia professor, at the end of last month in the Los Angeles Times. "Now that a back channel has been opened courtesy of Clinton, the Obama administration should open a direct channel of negotiations with Pyongyang." But the risks remain unchanged.

The Obama administration famously came into office willing to extend the open hand to autocrats. Its early efforts to begin discussions with the North Koreans, however, were rebuffed, and by late spring the conclusion was that the Pyongyang regime was not interested in talking to either the United States or the broader international community. The North, after all, had stated in clear terms it would not participate in the so-called six-party talks sponsored by Beijing.

The most urgent--and important--item on the agenda of any negotiations is North Korea's nuclear weapons program and its sales of weapons technologies to hostile regimes, especially Iran and Syria. The United States has been talking about these issues directly with the North since June 1993. Negotiations since then have been bilateral and multilateral, formal and informal. Every conceivable format has been tried at least once, and the talks have been everything but successful.

Almost everyone says that diplomacy carries no cost. Yet that is not true. In June 1993 North Korea did not have the bomb. Today, after two detonations, we know it does. In short, negotiations have given the dangerous despots in Pyongyang what they needed most in order to arm themselves: time. Now, North Korean technicians are using time to shrink their nuclear devices and mate them to their missiles, which they are also improving, and to advance an uranium enrichment program revealed this month in a dramatic announcement. We have, thanks to the directionless policies of the Clinton and Bush administrations, allowed Kim Jong Il to become a real threat.

The Obama team had indicated it wanted to "break the cycle" of long negotiations leading to broken agreements by cordoning off North Korea from the rest of world. Its renewed emphasis on pressure explains the sanctions imposed last week and during the last three months on North Korean trading firms and a bank.

And, so far, other nations are cooperating in the general effort. China, in June, seems to have exerted pressure on Burma to not allow a North Korean freighter, which was thought to be carrying an illicit cargo, to dock. In July, Italy seized two yachts bound for the North. China announced it had confiscated a shipment of vanadium--used to stiffen steel in missile casings--and suspended a bronze mining project in North Korea with a company targeted by U.N. sanctions. Japan obtained the guilty plea of a company boss for exporting tanker trucks, possibly for use in the North's missile program. Last month, the United Arab Emirates seized an Australian ship carrying North Korean small arms to Iran.

The State Department's Philip Goldberg is in charge of American efforts to enforce sanctions on Pyongyang, and he has been racking up the miles making sure that Asian nations tighten their rules. He's optimistic. "We've seen some indication that the overall effort is working," he said in Tokyo late last month. "Our goal is to return to the process of denuclearization," Goldberg said, in an earlier stopover in Seoul.

That was also the goal of the Bush administration when in September 2005 it designated a Macau bank, which had been handling North Korea's funds, a primary money laundering concern. This cut the bank off from the global financial system, and North Korean diplomats were suddenly carrying large amounts of cash in suitcases. Pyongyang was forced to return to the bargaining table to talk about its nuclear weapons program. President Bush, unfortunately, lifted the effective sanction too early, and Kim Jong Il rewarded Washington's leniency by boycotting the disarmament talks. The risk now is that the Obama administration will also ease its measures before the North completely, verifiably, and irreversibly gives up its nuclear arsenal. Unfortunately, this could happen. Last Friday, the State Department reversed a longtime policy by announcing it would participate in bilateral negotiations with North Korea outside the framework of the six-party talks.

So we will now find out if the Obama administration, in the face of North Korea's smile diplomacy, can maintain momentum in keeping the global community together behind sanctions. "We just want to make sure that the government of North Korea is operating within the basic rules of the international community," Obama said in August. The North Korean state is not following the rules, and, in any event, that goal is not good enough. If we have learned anything over the course of six decades, it is that the Kim regime cannot accept global norms.

Kim Dae-jung once observed that the North Koreans "keep making the same mistakes over and over again." The United States is guilty of repeating old errors as well. That is perhaps the major reason why a destitute North Korea so often gets the better of the world's most powerful state.

Gordon G. Chang is the author of Nuclear Showdown: North Korea Takes On the World (Random House).

Next Page