Two bomb attacks in 24 hours -- one of them involving an 11-year-old female suicide bomber -- killed dozens of people and wounded more than 120 others in the Nigerian cities of Yola and Kano, authorities said. At least 31 people were killed and 72 others injured in a bomb blast Tuesday evening in the northeastern city of Yola, Aliyu Maikano, a local Red Cross official, said. -excerpt- The two bombers, who Katsina said were females ages 11 and 18, blew themselves up at about 4 p.m. local time, during the peak of trading, he said. A minivan carrying four...