The four page report is
here.
Page 4 has says this...
At least 12 locations are portrayed in the publicly available videos, and a sampling of those videos confirmed that some were shot at the general times and locations described in the footage.
We assess the Syrian opposition does not have the capability to fabricate all of the videos, physical symptoms verified by medical personnel and NGOs, and other information associated with this chemical attack.
Who puts that in an official statement? 'We have video evidence - and we think the opposition doesn't have the capability to fake the videos.'
Really??