NYC PSA about nuclear attack preparedness raises eyebrows

New York City residents are accustomed to warnings about all kinds of potential threats - severe weather, public health, mass shootings. But a new PSA on surviving a nuclear attack has rattled some cages.

Released this week by the city's emergency management agency, the 90-second video opens on a computer-generated street, devoid of life. Damaged skyscrapers can be seen in the background.

Looking into the camera, a spokesperson says: "So there's been a nuclear attack. Don't ask me how or why. Just know that the big one has hit."