(The Washington Post) – A smiling physiotherapist beams in a framed photo inside the Red Cross ­center here, hinting at the radiant personality that charmed her orthopedic patients before a man with polio took out a gun hidden in his wheelchair and killed her. The slaying of Lorena Enebral Perez at a clinic in the northern city of Mazar-e Sharif followed the roadside killing of six Afghans working for the International Committee of the Red Cross (ICRC) and three abductions in the past year, part of a spike in violence by smaller militias and by the Taliban that has led to more than 200 deaths in the past week.