The point of weapons inspectors is to ensure that Iraq dismantled it weapons of mass destruction. Its not to play hide and seek and find the weapons. We've been playing that game for over 12 years. The U.S. proposed resolution 1441 to get the inspectors in and get them disarmed or there would be severe consequences. The entire security council approved that resolution.
Iraq didn't comply, didn't meet its deadlines, and had so many holes in the report it provided, you could drive a truck through it. They started the same tactics again that they did the first time the inspectors were there. Their delaying tactics and hiding so that world opinion would sway to their side once again.
This time around we didn't have a pushover for a president that was more interested in the interns and said enough is enough, drew a deadline, and stuck to it. It's the French that marginalized the U.N. by being stubborn fools again. They can't defend their own doorstep, relied heavily on US support in the past to bail them out, and then stab us in the back the first chance they get and denounce the US.