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)
Ben Margot/AP
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Ben Margot/AP
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)