"All inspections stopped in December 1998. That same month, in an article written for the New Republic, Ritter again warned of the continuing Iraqi threat, this time in much greater detail.... [I]n a June 1999 interview with leaders of the Fellowship of Reconciliation, a peace organization based in Nyack, New York, he had changed his tune."
What happened to Ritter in those 6 months?
In January 1999, Ritter was to speak at Calvin College "about Iraq's capability to deliver deadly chemical and biological weapons within the next six months and nuclear weapons within the next three years.
http://www.calvin.edu/january/1999/ritter.htm
In a Tuesday March 30, 1999 article in The Guardian, Ritter "...denounced the international embargo on Iraq as immoral and argued for a return to dialogue with the rogue regime," and also accused the U.S. of planting CIA agents within UNSCOM.
Nice work.
So we have a two month window.