Steve Difillippo has always had an entrepreneurial spirit. It began with a paper route when he was just a kid and later he had a landscaping business. When he was 24-years-old he bought an already established restaurant, Davio’s. He has turned the restaurant into a national brand, Davio’s Northern Italian Steakhouse. There are now seven locations on the East Coast. Davio’s has just celebrated its 30th anniversary. DiFillippo joins “CBS This Morning: Saturday” to discuss his best-seller, “It’s All About the Guest: Exceeding Expectations in Business and in Life, the Davio’s Way,” in which he shares his winning business advice. Source

Comedian Adam Conover has no fear of taking down society’s sacred cows. The creator and star of Tru TV’s “Adam Ruins Everything” brings his blend of truth and humor with a wide range of issues. He tackles everything from why engagement rings are a scam to why tipping should be banned, and even forensics. Conover joins “CBS This Morning: Saturday” to discuss his show. Source

A new CDC analysis finds many people are not taking the appropriate steps to keep their levels under control. A new study from “The Journal of American Medical Association” shows the rate for C-section births in the U.S. may be higher than expected. Also, experts say portion sizes may be a key to battling obesity. Dr. Holly Phillips and Dr. Tara Narula join “CBS This Morning: Saturday to discuss the research findings and their implications. Source

Republican presidential candidate Donald Trump says he has trouble believing Syed Farook’s sister when she says she didn’t know what her brother and sister-in-law were planning. Source

A 10-year-old girl is already on the campaign trail pursuing her dream to be president. However, she has one big obstacle standing in her way. Steve Hartman is On the Road. Source

A jury in West Virginia convicted the former CEO of a coal mining corporation of conspiring to violate safety standards. The charges came in the wake of the 2010 explosion at the Massey Energy’s Upper Big Branch mine. Anna Werner reports with more. Source

The weapons used in the San Bernardino shooting were versions of a popular rifle called the AR-15 rifle. That same gun has been used in many infamous mass shootings. Dean Reynolds reports. Source

The shooting in San Bernardino has reigninted debates on gun control, surveillance, immigration and how to combat ISIS. Nancy Cordes reports on how the 2016 candidates are responding to the mass shooting. Source

Special eyewear called eSight can help people who are visually impaired see better and live more independently. Hena Daniels reports. Source

Over-the-counter medications both provide benefits and pose risks to consumers looking to self-medicate. UNC Department of Medicine Professor Dr. Kevin Campbell joins CBSN to discuss. Source