The discovery of terrorist connections -- including the training camp south of Baghdad, gives Bush all the justification he ever needed for this war, even without WMD.
No, it doesn't.
1 - the 'legal' justification for invading Iraq was its possession of WMD's. Unless Iraq posseses WMD's, then the war was illegal.
2 - the discovery of anything other than WMD's in Iraq will not make the war legal.
3 - an Al Quaeda training camp was recently discovered in Washington State or Oregon. It's possible that other exist but have not been discovered yet. It is estimated that hundreds or thousands of terrorists operate in the United States. Should W then bomb and occupy the United States?