New York City September 10, 2021 4:40 pm Human Error to Blame for August Subway Outage Dozens of trains and hundreds of people were stranded Aug. 29 when the power went out, a failure now attributed to human error. NBC New York’s Greg Cergol reports. Local 0:34 City College of New York goes remote as protests continue 14:23 NYPD arrests around 100 protesters at Columbia University 29:11 NYPD moves in on protesters at Columbia University making dozens of arrests 1:45 NYPD enters Columbia University in riot gear to clear protest 3:24 Mayor Adams and the NYPD urge protesters to leave Columbia University