MTA worker stabbed in the Bronx while on duty at subway station

Violence once again erupted in the NYC subways on Thursday when an on-duty MTA worker was stabbed on a Bronx station platform just as the first morning rush hour of the new year began.According to law enforcement sources, the male employee, who is in his 40s, was arguing with a man at his Pelham Parkway station post at 6:10 a.m. on Jan. 2, before the situation escalated to a bloody assault.Police could not yet confirm what prompted the argument, but at one point, the suspect whipped out a sharp