Hear it: Cops report ‘mass-casualty’ NYC terror attack

Hear it: Cops report ‘mass-casualty’ NYC terror attack
Chilling NYPD audio recorded during Tuesday’s downtown Manhattan slaughter includes shaken cops describing the sight of the “mass casualty situation” before them. “There’s multiple people on the ground, Central. We need buses all the way up to Houston [Street], Central,” one officer says urgently, according to a tape obtained by the Post. “I’ve got four…