On the CBS News "Weekend Roundup" with host Allison Keyes. Pfizer says it will seek emergency FDA authorization this summer for a booster shot to its Covid-19 vaccine, but the CDC and FDA say fully vaccinated Americans do not need the booster right now. This comes as the Delta variant spikes around the world. We get the latest from CBS News Medical Contributor Dr. David Agus. There are reports that ransomware attacks more than doubled between 2019 and 2020. Why? Allison asked CNET's Roger Cheng. President Biden and Russian President Vladimir Putin spoke on Friday after cyber attacks earlier this week, with Mister Biden saying Russia needs to take action on the ransomware attacks by "criminals based in Russia." Allison gets the latest from CBS's Steven Portnoy at the White House. The Biden Administration also met with civil rights activists on Thursday amid growing calls for it to address what some see as an assault on voting rights. CBS's Ed O'Keefe has the latest. Black civil rig
