There has been a surge of slashings in New York lately. Most of them have been random. For whatever reason, the assailant just comes up to someone and slashes, usually across the face.
I'm waiting to hear from Mayor De Blasio on his reaction, but he has been silent so far. In the interest of public safety, he should make an immediate call for the registration or removal of any and all knives, just as he does whenever there is a shooting.