“In the 1990s, the Clinton administration used a mix of tough sanctions and incentives to keep North Korea and Iran from becoming urgent threats to global security. Though imperfect, that approach produced results. Under President Clinton, for instance, the North Koreans produced no new plutonium, conducted no nuclear weapons tests and produced no new nuclear weapons.”-Rosa Brooks, LA Times 10.13.06

Do you really believe that the North Koreans did nothing to advance their nuclear weapons research in the 1990s? The North Koreans signed the worthless piece of paper dubbed “the crowing achievement by the Clinton admin team on North Korea” The DPRK ignored “Agreed Framework” the moment it was signed. Just consider these facts:
In 1998, continued concerns about North Korean proliferation-related activities – including a ballistic missile firing over Japan and suspicions that an underground facility discovered in the North might be used for nuclear purposes – also threatened to derail the Agreed Framework. Just to name two.

Also, there are many who believe the Kim Jong-Il would not have been able to hold onto power (his father, “Great Leader”, died in the middle of the talks) if not for US support and aid. Who knows what kind of government North Korea would have now.

"There are various U.S. government sources that provide clues as to when North Korea began its uranium-enrichment program, but disagreement among the sources makes it difficult to determine the exact start of the program," concludes a 2003 report from the Arms Control Association. "Most information, however, indicates it began between 1997 and 1999."

You also forgot to mention the “help” that Clinton got from the likes of Jimmy Carter, who in 1994 visited Kim Jong-Il and gave him all sorts of nice gifts like the novel “Gone With the Wind”. How much did it help?
In October 2000 when Sec of State Albright –the highest level American official ever to travel to North Korea , visited Kim and after giving him an autographed basketball from Michael Jordan they clanged champagne glasses. What good did that do other than give prestige to the younger Kim?

“Hear no evil, see no evil” is not a safer way for the world.