Tell me how this helps?

Showing us again, why he wasn't fit to be elected Mr Kerry shoves his foot in his mouth.

OpinionJournal - Best of the Web Today: Kerry admitted that the US committed terrible mistakes in Iraq.

Someone enlighten me. I understand he and many others feel this to be true. But tell me, how does him giving these kind of quotes to Arabic newspapers while visiting Egypt help the American cause? I just don't see it.