White nationalist demonstrators clash with counter-demonstrators at the entrance to Lee Park in Charlottesville, Virginia, on August 12, 2017. A Unite the Right rally is planned in Washington, D.C., on the one-year anniversary of the Charlottesville demonstrations. (AP Photo/Steve Helber)
White nationalist demonstrators clash with counter-demonstrators at the entrance to Lee Park in Charlottesville, Virginia, on August 12, 2017. A Unite the Right rally is planned in Washington, D.C., on the one-year anniversary of the Charlottesville demonstrations. (AP Photo/Steve Helber)

CPJ Safety Advisory: Covering Unite the Right rally and counter-protests in Washington, D.C.