NEW YORK - An NYPD officer who fought off attacking homeless men in the subway is answering questions at Police Headquarters in Manhattan. 

Footage of the encounter, viewed more than 4.75 million times on social media, showed Officer Syed Ali using a baton and kicking at the men, who appeared to be drunk, as they come at him one at a time Sunday night. Ali, an Army veteran who served in Iraq and Afghanistan, never pulled his gun.