Thanks to Glenn Reynolds for this post from one who was in Iraq
and understands why we went in, and why we must finish the job.

A short quote:
ONE OF SADDAM'S SECURITY AGENTS WAS SENT TO QUESTION A SHI'I IN HIS HOME. THE INTERROGATION TOOK PLACE IN THE LIVING ROOM IN THE PRESENCE OF THE MAN'S WIFE, WHO HELD THEIR THREE MONTH OLD CHILD AT HER BREAST. A QUESTION WAS ASKED AND THE THUG DID NOT LIKE THE ANSWER; HE ASKED IT AGAIN, SAME ANSWER. HE GRABBED THE BABY FROM ITS MOTHER AND PLUCKED ITS EYE OUT. AND THEN REPEATED HIS QUESTION.

WORSE THINGS HAPPENED WITH THE KNOWLEDGE, INDEED WITH THE PARTICIPATION, OF SADDAM, HIS FAMILY AND THE BATHIST REGIME. THAT ALONE CONVINCES ME THAT WE WERE RIGHT TO INVADE, AND WE SHOULD HAVE SOONER. THOUSANDS SUFFERED WHILE WE WERE MESSING ABOUT WITH FRANCE AND RUSSIA AND GERMANY IN THE UN. EVERY ONE KNEW WHAT WAS GOING ON THERE, BUT FRANCE AND THE U.N. WERE MAKING MILLIONS ADMINISTERING THE FOOD FOR OIL PROGRAM. WAS THAT THE REASON FOR THE DELAY, I DO NOT KNOW, BUT THERE IT IS.