A pair of deadly bomb attacks in the Russian city of Volgograd killed at least 31 people, injured dozens more and sent a violent message just six weeks before the start of the Winter Olympics in Sochi. So far there are no claims of responsibility for the attacks. There are serious questions about whether this is the work of a known Chechen separatist group that vowed to unleash maximum force to disrupt the Sochi Games. Diana Magnay has the latest from Moscow.
What does this mean for security at the Sochi Games? Anderson discussed all of this with former CIA officer Robert Baer and National Security Analyst Fran Townsend.
Click to watch video
Michael Shumacher spent his career risking his life on the racetrack. He retired from auto racing as one of the most successful Formula One drivers ever. Tonight he is fighting for his life after a terrible accident while skiing with his family. Amanda Davies has the latest.
Robin Roberts has plenty to be thankful for in 2013. In a message posted on Facebook, she thanks God, her doctors, nurses, family and her longtime girlfriend Amber. This is the first time she publicly discussed her sexuality. Randi Kaye takes a look at the reaction to Roberts' reveal.
The 74-member crew of the Spirit of Mawson is preparing to spend their New Year's Eve trapped in an Antarctic ice floe. The research vessel has been stuck there since Christmas Eve. Several attempts to reach the ship have failed and Sunlen Serfaty has the latest on the rescue effort.
Alek Jha, Chris Turney and Lawrence Topham are all trapped on the Spirit of Mawson and spoke to Anderson about life on board.
You can follow their story at http://www.spiritofmawson.com/
That is just one of the serious questions that is still being debated more than a year after the deadly attack, Four Americans, including Ambassador Christopher Stevens, were killed last September 11th. New York Times reporter David Kirkpatrick traveled to Benghazi for a new report on the tragedy. One of Kirkpatrick's most surprising findings is that he saw no evidence of Al Qaeda involvement. While that backs up claims made by the Obama Administration, Kirkpatrick tells Anderson he is "certainly not trying to vindicate anyone."
2013 was a wild year. Why not ring in 2014 with a laugh?
Check out the AC360 audience picks for the top 10 RidicuLists of the year.
#1 – Wolf Blitzer: Vodka-Swilling Baby Eater – September 19
#2 – Laugh Attack – March 4
Anderson takes a look back at the biggest stories of crime, punishment, and courtroom drama in 2013.
Passengers aboard a research vessel speak out about their icy situation. Expedition leader Chris Turney, Guardian Science Correspondent Alok Jha, and Guardian video producer Laurence Topham discuss the situation on board and when they hope continue the expedition.
Sunny Hostin, Jeffrey Toobin, Mark Geragos, and Danny Cevallos discuss the year’s high-profile crime stories including George Zimmerman and the Whitey Bulger trial.
Watch part 2 of the discussion:
A research vessel is stuck in ice off Antarctica, and the Chinese icebreaker that came to the rescue is now… also stuck. CNN’s Randi Kaye reports.
Anderson Cooper goes beyond the headlines to tell stories from many points of view, so you can make up your own mind about the news. Tune in weeknights at 8 and 10 ET on CNN.
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