Yet another example of why you shouldn't take other people's work, change it a bit, and claim it as your own!
It's too bad the "artist" didn't get proper licensing. His poster touched a chord in many people's hearts.
I blogged about this issue in January.
Mark Vallen wrote an informative and extensively researched article about Shepard Fairey and "his works" on Mark Vallen's Art for a Change website. It includes several examples of original artwork and how it was "appropriated" by Shepard Fairey.
FEB 10 UPDATE: And now he's arrested for grafitti vandalism.