The U.N. human rights chief says her office has received credible allegations of reprisal killings against former Afghan security forces, and cases in which some former officials in the previous government and their relatives were arbitrarily detained—and later turned up dead. Michelle Bachelet, speaking Monday to the Human Rights Council, warned of a “new and perilous phase” for Afghanistan as she upbraided leaders of the Taliban terrorist group for a disconnect between their words and actions. She cited “multiple” allegations of Taliban forces conducting house-to-house searches looking for specific officials in the previous government and “people who cooperated with U.S. security forces and companies.” Such searches, carried out in at least a half-dozen cities, also at time affected U.N. staffers who have also reported increasing attacks and threats, she said, without providing specifics. “My office has received credible allegations of reprisal killings of a number of former ANSF (Afghan National …