Incredible New Video: See the 9/11 Attacks From an NYPD Chopper

It's not "home video" as much as "homeland video."

Shocking, newly-released NYPD video shows the terrorist attacks of 9/11 as seen from a police helicopter. The 17-minute video was captured from high above Lower Manhattan and features the raw reaction of officers within the helicopter cabin.

"I'm not sure I can do it justice, except to say that it's among the most transfixing 17 minutes of video I've ever seen," Gawker's Max Read writes.

According to that site, the clip was originally obtained by the National Institute of Standards and Technology under the Freedom of Information Act for its 9/11 investigation. The video was then anonymously sent to the "secret-sharing" site Cryptome:

The video's YouTube description tells more:

The chopper sound at the spliced end may be a carry over from a longer video. This video was a part of material provided by NYPD to NIST for the WTC investigation. Previous releases of NYPD material consist of a variety of packages, with redundancies, different namings and overlaps. To answer FOIA requests NIST digs through a vast collection to chop out a requested piece.