There may be valid reasons for unplugging Petraeus from a sensitive and important job. It was on his watch that the U.S. consular building in Benghazi was stormed by militants in September, with four Americans killed, including the ambassador. For too long, the Obama administration promoted the view that an obscure film, which insulted the Prophet Mohammed, had triggered the violence. As more information dribbles out, it looks increasingly likely that the assault was a targeted terrorist operation, planned by militants possibly linked to Al Qaeda, and timed to the anniversary of the Sept. 11, 2001, terrorist attacks. There are accusations the consular headquarters was poorly defended and spooks — Petraeus people — had failed to link the intelligence dots.