A young man was knifed on a NYC subway train by an attacker who made an apparent anti-white comment in a spate of stabbings and a shooting in the Big Apple, cops said Sunday. The 24-year-old victim boarded a southbound N subway with three friends at Chambers Street in lower Manhattan around 10 p.m. Saturday, cops said. While on the train, a man in another group said “Oh, white people,” a police spokeswoman said. The men in the group were black and Hispanic, cops said. A fight broke out when one of the victim’s friends asked the man what he...