In this preview of an interview to air on “Sunday Morning,” comedian Stephen Colbert, the new host of “The Late Show,” talks to correspondent Mo Rocca about his wife, Evie, and how a gazebo factored into his marriage proposal. Source

In this week’s edition of “Sounds of the Toyota Green Room,” climber Sasha DiGiulian chats with former vice president Dick Cheney about how she conquered Eiger Mountain’s “murder wall.” Source

Donald Trump is accusing conservative radio talk show host Hugh Hewitt of asking him “gotcha questions.” USA Today senior political reporter Heidi Przybyla joins CBSN with the details. Source

There’s a new sign that Iran might consider freeing American journalist Jason Rezaian. CBSN’s Elaine Quijano and Vladimir Duthiers have the details. Source

A droid named BB-8 steals the show in “Star Wars: The Force Awakens” – and it’s based on tech from a real-world robotics start-up called Sphero. CNET’s Brian Tong reports. Source

The author’s new novel, “Two Years Eight Months and Twenty-Eight Nights,” offers a way to see the threats the world faces and he has confronted. Rushdie explores those conflicts through ancient themes and spectacular magical events. Reviews call it “a swirling tale of genies and geniuses” and “tremendously inventive and timely.” When you do the math, the title adds up to 1,001 nights, inspired by Rushdie’s favorite childhood fables. Rushdie joins “CBS This Morning” to discuss his book and current events. Source

Nick Dietz compiles some of the latest and greatest viral videos, including a horse named Levi insisting upon a neck rub and TV host Jason Silva blowing a baby’s mind. To see these videos in their entirety, click HERE. Source

Vice President Joe Biden continues to fuel speculation he’ll been making a run for the presidency. He has not made an official announcement, but he’s heading to Atlanta Thursday, one day after attending a fundraiser in Florida. Biden is not tipping his hand, but new poll numbers show 46 percent of Americans have a favorable impression of him and an equal number don’t. Nancy Cordes reports. Source

The mission of U.S. forces in Iraq has shifted to training and advisory roles, allowing for redeployment of combat forces remaining in the country, U.S. and Iraq delegates said Wednesday. Source

Donald Trump is the only candidate who has threatened to mount a third party campaign. CBS News political director and host of “Face the Nation” John Dickerson joins “CBS This Morning” to discuss the documents sent by the Republican National Committee to all the GOP candidates. Source