Japanese blogger pantomime points out that Newsweek's flag-in-the trash cover is credited to photo illustrator William Duke.
According to Duke's website, he "has been recognized for his conceptual and problem solving abilities,as well as the artistic integrity of his photo illustrations", winning several industry awards. His clients include Time, Esquire, and the New York Times Magazine.
His site also features a portfolio of his past work, including this picture of Uncle Sam menacing the globe (and, in particular, the Middle East), while the rest of the world points its fingers at him. The red stripes on his hat are the splatter of thrown tomatoes:
Reader David Wright of Dave's Wagon finds the possible inspiration for the Uncle Sam picture.