Graffiti artist Shepard Fairey’s message was heard loud and clear in the silence of a Sanford, Fla. courtroom during the search of an impartial jury for the George Zimmerman trial. On the first day of jury duty, a Seminole County teen wore one of Fairey’s trendy black caps with the “OBEY” logo known worldwide. When it was his turn to be questioned in the courtroom Thursday, the recent high-school graduate wore an "OBEY" tank top. “I can’t help but see that you have something written on your shirt,” said defense attorney Don West, who looked puzzled in a navy blue...