Alaska Airlines and United Airlines say they have found loose bolts inside several door plugs on their Boeing 737 Max 9 fleets. CBS News senior transportation correspondent Kris Van Cleave has more on the investigation. Then, Kelly Bartlett, a passenger who was on the Alaska flight when a section of the plane’s fuselage blew off in midair, joins CBS News to recount the incident. Source

Doctors at Walter Reed Medical Center say Defense Secretary Lloyd Austin was hospitalized due to complications from surgery to treat prostate cancer. CBS News’ David Martin and Dr. Jon LaPook have the latest. Source

In a hearing Tuesday, federal appeals court judges appeared skeptical of the claim that former President Donald Trump is protected against criminal prosecution. CBS News congressional correspondent Scott MacFarlane has the details. Source

Two major storm systems are sparking weather alerts in several parts of the U.S. CBS News national environmental correspondent Dave Malkoff reports from Panama City Beach, Florida. Source

State Rep. Richard Holtorf is the latest Republican to throw his hat in the ring for Colorado’s 4th Congressional District seat after incumbent Congressman Ken Buck announced he would not seek re-election when his term ends next November. Source

A nonprofit worker who partnered with Texas to help with its migrant busing program says she left her position after the state deliberately stymied her efforts to notify officials and those in her nonprofit network about when and where migrants would be arriving in Democratic-led cities. Manuel Bojorquez has the story. Source

Scientists at Columbia and Rutgers have found that bottled water contains high amounts of nanoplastics. There is concern among some scientists that nanoplastics could be small enough to enter the bloodstream and be transported to organs, including the brain. David Schechter reports. Source

Former President Donald Trump was in a Washington, D.C., court Tuesday for a hearing over whether he should be immune from prosecution over actions taken while he was in office. Scott MacFarlane reports. Source

The door plug of a 737 Max 9 blew out during an Alaska Airlines flight, just minutes after the plane had taken off from Portland, Oregon. Source

Defense Secretary Lloyd Austin underwent surgery to be treated for prostate cancer, the Pentagon revealed Tuesday. He was then hospitalized in the ICU after experiencing complications. David Martin has the latest. Source