Recently acquired FOIA helicopter footage from 9/11 hit major media headlines. 

The new video, some of it seen before (@ 4:00 min), is low-mid quality and mostly missing the very important aspects of the WTC  Towers destruction; especially the onset of their destruction. It does however give good perspective to the dust cloud that covered thousands of people in Manhattan.

Over the last 9 years there have been many Freedom Of Information Act Requests filed  pertaining to the events on 9/11/01. Very little of the information that has been acquired has had any major media attention if any at all.