Former national security adviser John Bolton said he’s willing to testify in President Trump’s impeachment trial if the Senate subpoenas him. Nancy Codes reports. Source

The FBI, FAA and U.S. Air Force are investigating a mystery in the skies of Colorado and Nebraska: swarms of drones have been spotted, sometimes in formation. Janet Shamlian reports. Source

CBSSports.com senior NFL writer Will Brinson joins CBSN to recap the opening round of the NFL playoffs and discuss Tom Brady’s future. Source

CBSN political reporter Caitlin Huey-Burns discusses the latest CBS News Battleground Tracker polling on Iowa and New Hampshire, as well as how the escalating tensions with Iran could impact the 2020 race. Source

As concerns grow about jets’ environmental impact, some airlines are taking creative steps to cut down on carbon emissions. Source

Furniture giant Ikea agreed to pay a record $46 million to the family of a 2-year-old in California. Ikea has already paid a total of $50 million to settle three earlier suits following the death of children in similar accidents. Source

What types of attacks are the U.S. government preparing for and what does it mean now that the Iraqis have voted for the withdrawal of U.S. troops? Michael Morell, a former acting director of the CIA and a CBS News national security contributor, joins “CBS Evening News” to discuss. Source

Harvey Weinstein is facing new charges of rape and sexual assault. The additional charges were filed in Los Angeles just as his New York trial is about to begin. Jericka Duncan reports. Source

Iran and its allies are threatening U.S. military targets throughout the Middle East. There are more than 60,000 Americans deployed in the region. Holly Williams reports. Source

Multiple pill bottles containing bugs were found in the store. Source