What do recent suicide bombings in Russia mean for the Sochi Olympics?

What do recent suicide bombings in Russia mean for the Sochi Olympics?

Guests:

Fred Burton @Fred_Burton 
Co-author of "Under Fire: The Untold Story of the Attack in Benghazi" and vice president of intelligence at Stratfor.

Jim Walsh @DrJimWalshMIT 
International security expert and research associate at MIT's Security Studies Program.

Read more about Monday's bus bombing in Volgograd, Russia, the second suicide bombing in the Russian city in two days, via Al Jazeera America.

Benghazi questions persist following latest New York Times report about September 2012 attack

Guests:

Fred Burton @Fred_Burton 
Co-author of "Under Fire: The Untold Story of the Attack in Benghazi" and vice president of intelligence at Stratfor.

Jim Walsh @DrJimWalshMIT 
International security expert and research associate at MIT's Security Studies Program.

Read The New York Times' report on the 2012 attack on the U.S. consulate in Benghazi, Libya.

With more than a million enrollees, is Obamacare gaining traction? 

Guests:

Tom Doherty @tuckahoetommy 
Republican strategist, former senior advisor to Gov. George Pataki (R-N.Y.)

Bill Schneider @BillSchneiderDC
George Mason University professor, senior fellow at the Third Way think tank.

Michael Shure @MichaelShure 
Political contributor for Al Jazeera America

Read about the latest Obamacare enrollment figures, via Al Jazeera America, Democrats' plans to focus on the need for a higher minimum wage during the midterm elections, and news that Sen. Ted Cruz is "taking steps" to renounce his Canadian citizenship, via The Guardian.

As violence continues in South Sudan, what are conditions like for the refugees?

Guests:

Dr. Iyolumun Uhaa
UNICEF representative for South Sudan (@UNICEF). 

Eric Reeves @SudanReeves
Sudan analyst and researcher, Smith College.

Read more about the conflict in South Sudan, via The Washington Post.

NASA develops prototype for a flexible "Super Ball Bot" rover

Guest:

Derrick Pitts @CoolAstronomer 
Chief astronomer at The Franklin Institute Science Museum.

Read more about NASA's development of a "Super Ball Bot", via the International Business Times, and how NASA's latest lunar orbiting mission could impact space communication, via Gizmag.

Note: Tonight our guest host is Sheila MacVicar (@Sheila_MacVicar), correspondent for Al Jazeera America. Antonio Mora will return on Dec. 31. 

Tune in to Consider This at 10pm ET/7pm PT on Al Jazeera America. Join the conversation during the show by following our social accounts: @AJConsiderThis, @HermelaTV, and @AMoraTV.