The mourning continues in Iran. The capital was filled by a sea of mourners, the largest gathering in decades. The procession stretched nearly four miles, as Iran’s leaders made new vows to avenge the death of its top general. Elizabeth Palmer reports. 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

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

Teaching first-time musicians at Austin Middle School is challenging for Carly Addison. But helping one student achieve her dream is exactly why she became a teacher. Source

Defense Secretary Mark Esper said the U.S. has no plans to pull American troops out of Iraq. Iraq’s parliament recently voted to expel the 5,000 Americans to protest the Baghdad drone attack that killed Iran’s top general, Qassem Soleimani. David Martin reports. Source

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

Sheriff’s departments across the border area of Colorado, Nebraska and Kansas have been flooded with at least 30 reports since mid-December. Source

Here’s a look at the top stories making headlines on the “CBS Evening News with Norah O’Donnell.” 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