You mean besides murdering and starving his own people, I guess. Saddam is as mixed up in funding Wahhabi terrorists as the Saudi royal family. Saddam therefore, even if he didn't export terrorists themselves - I need proof that he isn't, and not even the UNweenies will go THAT far - still exports terrorism to every country in the region.
Who's going to be your bog gee man if/when we 'invade' Iran, Saudia, Lybia, Egypt, Pakistan and maybe down the road Indonesia etc. After all, those countries don't have the 'dog in the fight' desire, ability or stomach to rout out 'WMD' para militaries. In the end, it will be up to us.
W said this will be a long, hard 'war', and you better bet on it.