Google July 28, 2021 4:08 pm Silicon Valley Tech Companies Tighten Their Rules on COVID-19 Vaccinations Tech companies large and small are tightening their rules on vaccinations. Scott Budman reports. US & World Videos 2:43 California's tourism bounces back but SF lags behind 2:06 2 injured following stabbing in San Jose, police say 2:00 ‘Kayak-tivists' take Chevron protest out onto the Bay by Richmond 2:29 San Jose celebrates Cinco de Mayo with a pair of parades and festivals 0:22 Police investigating double stabbing in San Jose