ICYMI: Trump's Cabinet confirmation hearings begin, Debbie Reynolds cause of death revealed, report: smoking costs $1 trillion

Trump's Cabinet nominees face confirmation drama
Confirmation hearings for President-elect Donald Trump's Cabinet begin Tuesday morning with Senator Jeff Sessions for attorney general. The Senate Judiciary Committee's confirmation hearing for Sessions, as well as the upcoming hearing for Rex Tillerson for secretary of state have received push back from House Democrats, who have requested a delay for Tillerson's hearing.

Debbie Reynolds cause of death revealed
Debbie Reynolds' died from a fatal stroke after a blood vessel burst in her brain, according to the official death certificate obtained by ... read more.

Smoking costs $1 trillion, soon to kill 8 million a year: study
Smoking costs the global economy more than $1 trillion a year, and will kill one third more people by 2030 than it does now, according to a study by the World Health Organization and the U.S ... read more.

Clemson upsets Alabama in College Football National Championship game
Alabama and Clemson battled it out in the college football National Championship game for the second consecutive year on Monday night ... read more.

Paul Ryan pitches his tax reform plans to Donald Trump's team
President-elect Donald Trump and House Speaker Paul Ryan are getting ready to tackle one of Ryan's signature issues: reforming the U.S. tax code ... read more.

AOL.com's 'ICYMI' (in case you missed it) is a daily round-up with the biggest stories from the past day -- so you can have a life and still know what's going on in the world.