The video was posted on YouTube. It is posted with permission, courtesy of GeoffreyParrish.
It shows security guards handcuffing and removing Sergeant Carlos Fabara.
The bus was in Philadelphia on its way to New York after the holiday weekend.
In 2007, a newspaper profiled Fabara for having the most civilian complaints lodged against him in one year.
He was with another off-duty NYPD officer, who was also kicked off the bus.
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