Police did not appear to try to detain the rioters, allowing them to leave unhindered. They were there to protect against the rebellion. No one cared when they were rioting. Law enforcement experts said they were mystified by the tactics that police used once the mob was already inside the Capitol. Nobody stopped them  and some officers were captured on video appearing to stand back as rioters streamed inside, Carol Leonnig, Aaron Davis, Dan Lamothe and David Fahrenthold report.
The news video mentioned in the article was filmed in a separate setting.
( z0 film :ARG1 ( z1 video :ARG1-of ( z2 mention :ARG0 ( z3 article ) ) :mod ( z4 news ) ) :location ( z5 setting :ARG1-of ( z6 separate ) ) )
(z0 / film-01
    :ARG1 (z1 / video
              :ARG1-of (z2 / mention-01
                           :ARG0 (z3 / article))
              :mod (z4 / news))
    :location (z5 / setting
                  :ARG1-of (z6 / separate-02)))
The news video mentioned in the article was filmed in a separate setting .
z1 :mod z4
z1 :ARG1-of z2
z2 :ARG0 z3
z0 :ARG1 z1
z5 :ARG1-of z6
z0 :location z5