Yes, Virginia, there are such things as Postal Police.
And Postal Police arrived at the Berkeley Post Office Occupation at 8:00 AM Thursday morning, December 4th…
Four of ten of these USPS cops are openly carrying weapons and extra mags. pic.twitter.com/YRuLKPhTwL
— Occupy Oakland (@OccupyOakland) December 4, 2014

and didn’t leave until almost 6:00 PM, in the process clearing out tents and possessions from the Milvia side of the building and stealing protest signs from Berkeley Post Office Defenders and First They Came for the Homeless.