In this Jan. 31, 2020, file photo, a masked worker cleans a street in the Chinatown district in San Francisco. Police and volunteers have increased their street presence after a series of violent attacks against older Asian residents in Bay Area cities stoked fear and subdued the celebratory mood leading up to the Lunar New Year. (AP Photo/Ben Margot, File)

FILE – In this Jan. 31, 2020, file photo, a masked worker cleans a street in the Chinatown district in San Francisco. Police are stepping up patrol and volunteers are increasing their street presence after several violent attacks on older Asians stoked fear in the San Francisco Bay Area’s Chinatowns and subdued the celebratory mood leading up to Chinese New Year. (AP Photo/Ben Margot, File)