It was a phone call Ibrahim Mahmoud says he'll never forget. The woman on the other end, speaking in Hebrew-accented Arabic, accused the appliance store owner of being a member of Hamas and informed him the IDF would bomb his house. Hours later, after he had already moved 20 relatives out of the four-story building, she called back to tell him she had made a mistake. "Be safe," she said and hung up, according to Mahmoud. Dozens of other Palestinians have recently received similar phone calls, many of them on target, in a new tactic the army said is meant...