Mayor Beth Van Duyne of Irving, Texas is blaming death threats received by Irving’s police chief, police officers, teachers and school administrators on President Barack Obama for his hasty support before the facts were known. Fourteen-year-old high school freshman Ahmed Mohamed was briefly arrested after bringing a suspicious ‘briefcase clock’ to school last week.Mohamed’s claim to have made the clock himself has been exposed by experts as a hoax. The experts state Mohamed took a manufactured digital alarm clock (a 1986 Radio Shack Micronta brand clock-radio) out of its housing and placed it in a pencil box that made it...