“Have at it,” President Biden said of legal challenges. Source

Three studies published by the agency show booster shots could be needed soon. Source

Former Secretary of State and Democratic presidential candidate Hillary Rodham Clinton joins “CBS Mornings” to discuss her memories of 9/11, twenty years later. Source

Dr. Ogechika Alozie, an infectious disease specialist in Texas, joins CBSN to discuss President Biden’s strategy to fight the pandemic with measures including vaccine mandates. He also discusses how health care workers are dealing with COVID-filled hospitals and ICU beds. Source

“He was a champion.” Atlas, an NYPD K-9, was among the hundreds of dogs who served in search and recovery efforts for months after the 9/11 terror attacks. Twenty years later, Atlas’ handler, Bob Schnelle, tells CBS News how the dog endured at ground zero — and literally saved his life. Source

On 9/11 and the days afterward, New York City’s volunteer firefighters played a pivotal role in supporting the FDNY. Ed Wilmarth, a volunteer in Queens, tells CBS News his story of responding to the attacks when he was just 20 years old. Source

“I deeply regret my actions and apologize to the court,” Fruman said in Manhattan federal court Friday. Source

Kacey Musgraves joins Gayle King to discuss her new album and film, sharing what it was like creating this album through a period of heartbreak. Source

White House says three major retailers to offer over-the-counter tests for about a third less than current prices by end of the week. Source

Tampons and menstrual pads should be as common in restrooms as toilet paper, a state legislator said. Source