Ten years after New York was hit by an unbearable act of savagery, the gloves have come off in Hollywood. A new movie genre has emerged that’s bound to dazzle and nauseate every breathing American... I’ll call it . . . 9/11 porn. Osama bin Laden would have loved this. The Internet and TV have been ablaze for a month with unavoidable advertisements for “Extremely Loud & Incredibly Close,” a movie that does for the monsters who brought down the World Trade Center what “Triumph of the Will” did for a guy named Adolf. ...it’s a tale about love, loss...