Behind the Focus on Testosterone and Masculinity | William Shatner's Shared Cancer Story with Daughter

World leaders will be in Washington on Tuesday for the funeral of Sen. Lindsey Graham, but some are also expected to meet with President Trump. CBS News national security analyst Aaron MacLean explains what to expect.Bryan Kohberger, the man sentenced for the 2022 murders of four University of Idaho students, pleaded guilty last year as part of a deal. Now, he wants to take back his guilty plea and go to trial. Jericka Duncan reports.Legendary actor William Shatner and his daughter Melanie Shatner Gretsch are opening up about their battles with stage 4 cancer nearly at the same time as each other. Both are now cancer-free and share how they helped each other through the challenging time.Seventy percent of men say their testosterone levels are important to them and 49% feel it is a measure of their masculinity, according to a survey from "Men's Health." CBS News chief medical correspondent Dr. Jon LaPook talks about medical recommendations for testosterone screening while "Men's Health" editorial director Richard Dorment addresses the changing conversations about testosterone.One year ago, Leah Lendel survived a shark attack in Florida and endured a six-hour surgery to reattach her right hand. She tells "CBS Mornings" why revisiting the site of her attack was healing, how she is conquering her fears and is surprised by Paralympian and fellow shark attack survivor Ali Truwit.