Appearing on Fox News on Thursday, Cheney called out the network for promoting Trump’s false claims the election was stolen. Source

DHS Secretary Alejandro Mayorkas issued a terrorism advisory warning of “increasingly complex and volatile” domestic threats. Source

Walmart ends mask mandate for vaxxed shoppers and workers. Home Depot, Kroger and Target say they still want masks up — for now. Source

In Gaza, at least 122 people have been killed, including 31 children, with 900 wounded, according to the Health Ministry. Source

The announcement comes after the horse tested positive for the steroid betamethasone in a sample taken after the Derby. Source

As many as 10 million people who filed taxes before the American Recovery Plan was passed could be receiving tax refunds. Source

A ransomware attack has thrown Ireland’s health service operator into disarray. Meanwhile, a growing mice infestation in Australia is causing major issues. CBS News foreign correspondent Ian Lee joined “CBSN AM” with a roundup of headlines. Source

Pulitzer Prize-winning Washington Post reporter Carol Leonnig’s new book traces the evolution, and recent scandals, of the agency responsible for protecting the president. Source

Many Americans who are fully vaccinated still have questions after the Centers for Disease Control and Prevention said they no longer need to wear a face mask in most situations. Dr. Eric Cioe-Peña, the director of global health and an emergency room physician, at Northwell Health, joined CBSN’s Tanya Rivero with the latest on the guidance.  Source

The CDC has updated its guidelines to say that fully vaccinated Americans do not need to wear masks most of the time. CBS News’ Skyler Henry reports on the changes, and Dr. Julie Morita, the executive vice president of the Robert Wood Johnson Foundation, joins CBSN’s Tanya Rivero to discuss what this means for kids who are not yet eligible for vaccination.  Source