John Kerry saw fit to chide Bush for cracking jokes about WMD's. While humor in any circumstance is considered a good thing by alot of people, Mr. Kerry had a cow. The WSJ asked for response from soldiers and their family members about their thoughts about the appropriateness of the humor Bush displayed. They overwhelmingly support the President:

I myself served over 24 months in Southeast Asia, and every time I saw a USO show, especially Bob Hope, he made fun of things the same exact way that Bush did. Everyone laughed because made it easier to take. It was taken as intended as satirical humor.

Lighten up John, I think most people would prefer a candidate/President with a sense of humor.