Petraeus '07 vs. Petraeus '08
Here's a word cloud I cooked up real quick over at Many Eyes comparing today's opening statement from Iraq commander General David Petraeus to his previous Congressional visit last September. As Dana Milbank has noted, you'll find less focus on Al Qaeda this time around, and more mentions for Iran.
Note that this isn't his entire testimony. Just the opening statements. So, it doesn't include the many questions he's fielded.