At least 26 people are dead after a bus plunged 250 feet into a ravine on the Indonesian island of Sumatra. A ship spilled 600 gallons of diesel just off the coast of one of the Galapagos Islands, raising concerns about the vulnerable ecosystem. And more than a dozen people were hurt in a crowd crush when an Australian mall’s giveaway event went wrong. Cindy Pom rounds up the world headlines from London. Source

For more than 34 million Americans, food stamps help them survive. Now there’s concern proposed changes in the USDA’s SNAP program could drastically cut those benefits, as the Trump administration says it wants to reduce waste. Adriana Diaz reports. Source

But Israel has sharply cut the number of Christians from the Gaza Strip allowed to make the trip. Source

With a record number of people expected to travel this holiday season, bad weather is causing problems for some. CBS News correspondent Mola Lenghi joins CBSN AM from Newark Liberty International Airport as people take to the skies for the holidays. Source

Katy Mathes underwent surgery to remove her ovaries and fallopian tubes and had a double mastectomy before learning her cancer risk assessment had changed. Source

Democrats and Republicans remain deadlocked over how to proceed with President Trump’s upcoming impeachment trial in the Senate. Senate Minority Leader Chuck Schumer is calling for witnesses and White House documents, while Majority Leader Mitch McConnell calls House Speaker Nancy Pelosi’s holding of the impeachment articles “absurd.” CBS News’ Marc Liverman joined CBSN AM with the latest. Source

Every year around Christmas, the United States Navy Band performs a holiday concert in the nation’s capital. The band is a large group of highly trained and highly talented servicemen and women. Paula Reid spent a morning with them at the Navy Yard in Washington before their winter show. Source

Former ballet star Tony Williams’ “Urban Nutcracker” in Boston incorporates dance styles from hip hop to flamenco and Mexican folk. More than 75 kids from different ethnic and economic backgrounds are part of this year’s production. Dana Jacobson reports on how the show supports the mission “diversity through dance.” Source

19-year-old Eduardo Arevalo is being held without bond in The Colony, Texas, charged with killing his sister, who was eight months pregnant. KTVT’s Jack Fink reports. Source

Doctors warn us to take extra care of our health around the holidays. Research finds our risk of having a heart attack jumps 37% on Christmas Eve, and they’re most likely to happen around 10 p.m. right after dinner. Dr. Christopher Kelly and Dr. Marc Eisenberg, authors of “Am I Dying?!: Should You Chill Out or Freak Out? A Complete Guide to Your Symptoms and What to Do Next,” join “CBS This Morning” to explain when you should worry about your health. Source