CDC says Pfizer and Moderna vaccines 80% effective at preventing COVID-19 after one shot

In today's top tech stories, CDC study finds Pfizer and Moderna vaccines are 80% effective in preventing COVID-19 after first shot. In other news, Dominion Voting hits Fox News with $1.6B suit over 2020 election claims. And finally, solve NASA's Deep Space Food Challenge and win $500,000.