Captain Ed Morrissey has an excellent post on the subject:
http://www.captainsquartersblog.com/mt/archives/008425.php
(He has many embedded links to a lot of important information, so I'll just post the link in stead of the article). Well worth your exploration.
Bill Clinton and CIA Gave Iranians Blueprint for Nuclear Bomb
Hmmm...wonder why that story never made the front page of the NYT < /sarcasm>.