Authorities have arrested a man they believe to be the perpetrator of at least some of the recent bomb threats against Jewish institutions across the country. They say the suspect, who's an ex-journalist, was trying to harass a woman. The bomb threats have risen past 100 and have targeted Jewish centers across dozens of states over the last two months. Headstones have also been vandalized at Jewish cemeteries in Missouri, Pennsylvania and, most recently, Upstate New York.