NYPD deploys 500 officers to patrol subways after four stabbings in less than 24 hours

The New York City Police Department is deploying an additional 500 officers to patrol the city's subway system after four stabbings in less than 24 hours that left two people dead.

source https://www.cnn.com/2021/02/13/us/nypd-officers-deployed-subway-stabbings/index.html