How scammers raked in millions of dollars in pandemic relief fraud schemes. Advice for vaccinated parents about what to do with their unvaccinated kids. And, what we know about the origin of covid-19.Read more:Last week, the Justice Department announced that it had charged hundreds of scammers who targeted the trillions of dollars made available through federal aid programs such as the Paycheck Protection Program and the Economic Injury Disaster Loans program. Reporter Matt Zapotosky explains how the thieves worked, how they were caught and what the consequences have been — for the scammers and the scammed. As more adults become vaccinated against the coronavirus, some vaccinated parents might find themselves in a quandary — while they may be protected, allowing for more freedom in socializing or engaging in other routine activities, their children are not. Wellness reporter Allyson Chiu discusses what that means for summer camp and play dates.The World Health Organization has released its findings into the origin of the coronavirus. Foreign affairs reporter Emily Rauhala explains the controversy around the report and the answers it has left unanswered.