2,000 dead - for what?

A speech won't bring them back Mr. President. From CNN (via AFP):

The US network CNN, quoting Pentagon sources, reported Tuesday that the number of soldiers killed since the March 2003 invasion of Iraq had reached 2,000 with the deaths of two more soldiers, a toll likely to add pressure on the US administration over its role in the violence-wracked country.

So what are the reasons that Bush has given for these 2,000 dead?

1. 9/11
2. WMD
3. Iraq was a haven for terrorists
4. Spreading Democracy

So what's today's excuse Mr. President?