Noida, April 18 -- Four children and two men were injured in Greater Noida West on Thursday morning when a private school bus with 17 students on board hit the road median and rammed into a tree while trying to avoid a head-on collision with a speeding vehicle, police said. The injured students were two girls, aged 13 and six, and two boys aged 12 and 16, who are all out of danger, said police....