The Texas man who shot and killed a gunman inside his church is telling his story. Jack Wilson needed just one shot to take down the man who killed two of his fellow churchgoers Sunday. Wilson was one of the many in the church who drew a gun. Mireya Villarreal reports. Source

Travel is one of the top resolutions for 2020. Mark Ellwood, a contributing editor at Condé Nast Traveler, joins “CBS This Morning” to take a look at the big travel trends and locations for the new year, including space travel. Source

Alexa Kasdan thought she was just getting tested for step throat, but her doctor had ordered an extensive, and expensive, array of respiratory tests. Source

A groundbreaking law in California will give 40 million people the strongest internet privacy rights in U.S. history when it takes effect in 2020. Many tech companies collect personal information including birthdays, email addresses and users’ interests without permission, then earn big money selling it. Starting Wednesday, Californians can limit what happens when their information is collected. John Blackstone reports. Source

A routine doctor’s visit for a sore throat brought more than $28,000 in charges for one woman. In our Bill of the Month partnership with Kaiser Health News and NPR, we take a look at unexpected medical costs. The woman’s visit shows even when insurance does cover medical charges, costs can still skyrocket in the long run. David Begnaud reports, and Kaiser Health News editor-in-chief Dr. Elisabeth Rosenthal joins “CBS This Morning” to discuss the findings. Source

The former chairman of Nissan, now in Lebanon, said he feared “injustice and political persecution” in Japan. Source

Countdown to 2020: Security is tight in the hours before the ball drops. Also, protesters in Iraq storm through security at the U.S. Embassy in Baghdad chanting death to America. All that and all that matters in today’s Eye Opener. Your world in 90 seconds. Source

Asia and the Pacific kick off firework-filled celebrations to mark the end of the year, and the beginning of the new decade. Source

More than 275,000 people signed a petition to cancel the show, saying cities like Sydney that are already choking in smog from fires didn’t need any more smoke in its air. Source

A newly released report says the Food and Drug Administration may have failed to set strict enough standards and follow-through for training doctors about the risks associated with opioids. Researchers say lack of oversight and training problems happened while the opioid crisis killed tens of thousands of people a year. Anna Werner reports. Source