About 45 minutes before sunset on May 25—the one-year anniversary of the murder of George Floyd—approximately 100 protesters gathered outside of the Multnomah County Justice Center in downtown Portland. Many followed the typical dress code: black shirt, black pants, black mask. The sea of identity-concealing dark clothing, known as “black bloc,” provides a sense of anonymity and uniformity that can be further enhanced by rules that ban livestreamers and restrict the press.