December 4, 2011
U.S. Park Police arrest protesors who broke through the police line in an effort to join fellow Occupy D.C. protestors barricaded in a wooden structure they erected in McPherson Square.
Summary: Occupy D.C.'s overnight construction of a large wooden structure in McPherson Square ended two months of relatively peaceful coexistence with the U.S. Park Police, who said that the building appeared to be a permanent structure and was therefore illegal. Occupy D.C. said that they were building it to protect themselves from increasingly cold weather. Protesters defied repeated orders to abandon the building and take it down -- setting the stage for a day long standoff -- which ended in 31 arrests and the destruction of the building by the Park Police.