Los Angeles County Supervisor Janice Hahn, who represents Torrance, El Segundo, Manhattan Beach and other aggrieved municipalities, said she would prefer to see the county act in concert with the rest of California, “but in this instance they just felt like the cases in L.A. County were increasing so rapidly that they just couldn’t wait.” Cases have been surging elsewhere in California, too, and other counties have also begun recommending indoor mask-wearing, but Los Angeles County is the only one so far to impose a new mandate.