The thirty-one-minutes-and-one-second-long video I took while I came into
the hallway and opened the iron gate to them and then the police held me
near the iron gate in the hallway has met with uploading difficulty onto
YouTube, but now is successfully uploaded and publicized at Facebook. The
link is below:

https://www.facebook.com/limin.wang.94651/videos/665771597779295/?notif_id=
1639056242272733¬if_t=video_processed&ref=notif