This is an excellent point. The emphasis shouldn't be on the fact that we didn't find "very many" WMD, but the reason we didn't find them. The liberals of the world working to protect Saddam are the reason.
They are also the reason we will need to go into Syria next chasing after the WMD. Unfortunately it is already too late there also. Even if we find a majority of the WMD, there are already far too many unaccounted for.
Whether we will go into Syria later or not is a point for discussion also.
And then into Iran and North Korea?
Won't happen.
The American public won't stand for it. We may conduct airstrikes against labs and storage facilities, but there is no groundswell of support for another invasion. The military is already as stretched as far as we're willing to stretch them. Unless we are attacked, we won't commit them further.
Also, we'd be eaten alive at the U.N. and other places. You can just imagine the chorus of our friends at the U.N. 'This time, we need to give diplomacy, sanctions, and inspections time to work'. We'd be lucky to get a resolution authorizing force out of them before 2035.
We don't have a cease fire with Syria that they are violating, nor any clear and compelling need to attack them. No, I think Bush has pushed the military angle as far as it can reach at the moment. Which is fine, IMHO. We have Syria cornered, and they know we have their number if they try anything. Now, it's time to use different tactics to achieve our goals.