Jacob describes his travels from San Francisco to Iraq to New Orleans and back with his outstanding photos behind him. This is one of the most courageous men I have ever met in my life - a true hero to many and a master of communications.
You have got to see this video. (it's under an hour)
Lots of good stuff about Katrina.
Links and Video on the flip...
THIS VIDEO (.mov file) is from the 22nd Chaos convention.
He spoke about his travels in front of a slideshow of photos he took.
If you're not into the whole quicktime movie thing, at least read a short description of what you're missing.
A teaser:
...cover issues from safety, technology, documentation, sensitivity to local cultural issues, techniques for entry, methods for networking in remote parts of the world, helping other travelers and how new media such as blogging helps us to address issues worldwide.
Very very good stuff.
His bio from the convention's website.
NOTE: in the talk he mentions having all his pictures from iraq and new orleans under creative commons licenses and is available at archive.org
If you want to get the "40 inch prints" he mentions just grab the .cr2 files at the bottom of the list.