A report from the U.S. Department of Health says that mastectomies have increased by 36 percent over a decade, even though the rate of breast cancer has stayed the same. Dr. Jon LaPook reports. Source

A blown tire started a fire that engulfed a Megabus outside of Chicago on Sunday. While all of the passengers escaped safely, this is not the bus company’s first tire-related disaster. Don Dahler explains why safety officials don’t think the accidents are a coincidence. Source

For the first time in 30 years, the Supreme Court went to work Monday without Justice Antonin Scalia. Chief Justice John Roberts began the morning session with a tribute as Scalia’s empty seat served as a reminder of the political battle to replace him. Jan Crawford reports. Source

The U.S. and Russia agreed to a partial ceasefire in Syria that will begin Saturday. However, terror groups ISIS and al Nusra, an al Qaeda affliate, are not part of the agreement. ISIS has claimed responsibility for bombs that killed at least 100 over the weekend. Elizabeth Palmer reports from Damascus. Source

Infections picked up at the hospital kill tens of thousands of Americans each year, but some basic steps can help reduce the risk. Hena Daniels reports. Source

Senior Designer Manager Heather Northrop explains to CBS News correspondent Jericka Duncan how her team worked with an advisory board to get two historical characters — Native American Kaya and Mexican Josefina — as authentic as possible. Source

Pop star Kesha claims her producer has been sexually abusing her for years and is seeking to terminate her contract with Sony Records. With analysis on Kesha’s battle, CBS News legal analyst Rikki Klieman joins CBSN. Source

If you grew up in the ‘90s or have a school-age daughter, then you’re probably familiar with the brand American Girl, which is celebrating its 30th anniversary. Since 1986, the business has sold more than 29 million dolls and more than 153 million books. This summer, it will release a new historical doll, Melody, the company’s third African-American doll. Only on “CBS This Morning,” Jericka Duncan goes inside the design studio for the first exclusive look. Source

Bill Cosby’s wife, Camille, is expected to testify Monday morning in a defamation lawsuit against her husband after an overnight legal ruling. The comedian is being sued by seven women who claim he sexually assaulted them. They say he branded them as liars when they shared their story publicly. Camille Cosby’s lawyers filed an emergency motion to delay the deposition, but a judge denied her motion. CBS News legal expert Rikki Klieman joins “CBS This Morning” to break down what this means for Camille Cosby. Source

A medical treatment for gunshot wounds that was developed for combat is now being used by civilians. It’s called the Xstat and the U.S. military has been using it successfully since 2014. DeMarco Morgan has the story. Source