The release of a Senate report detailing the CIA's enhanced interrogation tactics after the September 11 attacks has the CIA, Congress, and present and former administrations scrambling for answers. The New York Times' Mark Mazzetti, Los Angeles Times' Doyle McManus examine results of the five-year investigation. Also Real Clear Politics' Alexis Simendinger and ABC News' Jeff Zeleny explain how

President Obama proposed a $3.7 billion plan to address the surge of illegal immigrants, the escalating conflict between Israel and Hamas, and Germany's decision to expel a CIA station chief in Berlin in response to more cases of U.S. Joining Gwen Ifill: Ed O'Keefe, Washington Post; Fawn Johnson, National Journal; Mark Mazetti, New York Times; Indira Lakshmanan, Bloomberg News

In the Webcast Extra, we discuss the continued fallout from the launch of healthcare.gov. How is the public reacting? Plus, what will Congress prioritize in the New Year? Is immigration reform a priority? And the story of a CIA spy missing in Iran.

Sen. Dianne Feinstein and the Senate Intelligence Committee are pushing to declassify a CIA report on the use of torture. And while Senate Majority Leader Harry Reid continues to attack conservative billionaires and Super PAC funders Charles and David Koch, The Washington Post's Matea Gold digs deeper into the Koch Brothers background and influence in the GOP.

Ukraine's interim Prime Minister visits the White House and Crimea referendum, CIA accused of spying on Senate intelligence committee, and the Republican party wins Florida congressional seat in special election. Joining Amy Walter of Cook Political Report: Susan Davis, USA Today; Ed O'Keefe, Washington Post; Indira Lakshmanan, Bloomberg News.