ABUJA, Nigeria (AP) — A wave of militant attacks on schools in Nigeria over the past week has left more than 80 children missing, local officials and a rights group said Sunday, the latest in school abductions in the West African country where the government is battling an array of jihadi and other armed groups. The attackers targeted a primary school in the conflict-battered state of Borno, in Nigeria’s northeastern corner, sometime between Wednesday and Thursday. The militants abducted 42