Seven women in one family had major surgery after genetic tests showed them at an elevated risk for cancer. Years later they were told the tests had been wrong, meaning the surgeries were unnecessary. CBS News correspondent Jamie Yuccas joins CBSN with more. Source

Republicans, Democrats locked in impeachment impasse; climate change threaten reindeer habitats Source

Goldman’s recently expanded environmental policy “is in direct conflict” with Alaska’s goals, a state official said. Source

The proposal comes after an investigation found that lower-income Californians pay the most for insurance. Source

In a federal appeals court filing, House lawyers said testimony from Don McGahn could provide new evidence President Trump committed additional impeachable offenses. Source

Demonstrators have been flooding Iraqi streets protesting corruption, the failures of Iraq’s political system, and Iranian influence. Iraq’s government has responded with force. Joshua Keating, a staff writer at Slate focusing on international affairs, joined CBSN to discuss Iraq’s worst political crisis in years. Source

In this week’s edition of Tuesday Morning Quarterback, James Brown, a CBS News special correspondent and the host of “The NFL Today,” joined CBSN to discuss the NFL playoff picture: who’s in and who’s out? He also talked about the NBA’s Giannis Antetokounmpo, also known as the “Greek Freak,” and his record-setting run with the Milwaukee Bucks. Source

“We’re not helping snowflakes avoid arguments. We’re helping Trump supporters win them!” Source

On Christmas Eve, the risk for a heart attack jumps 37% and they’re most likely to happen around 10 p.m., according to a medical study. Source

Popular new meatless burger options like Beyond Meat and Impossible Burger are raising questions about how the products are made and their nutritional value. Registered dietitian Rachael Hartley joins CBSN AM to talk about the products. Source