Rick Santorum is the main target in the GOP race as 13 states prepare to vote between now and Super Tuesday. Plus, international leaders meet in Tunisia to prevent more bloodshed in Syria. And unrest continues in Afghanistan after the burning of Qurans. Joining Gwen: Michael Duffy, TIME Magazine; Jeanne Cummings, Bloomberg News; Nancy Youssef, McClatchy; Yochi Dreazen, National Journal.

The U.S. and China continue to negotiate over activist Chen Guangcheng's travel to America. Plus, President Obama visited Afghanistan on the one year anniversary of Osama bin Laden's death. Also, new unemployment numbers and the 2012 presidential race. Joining Gwen: Martha Raddatz, ABC News; Peter Baker, New York Times; David Wessel, Wall Street Journal; Charles Babington, Associated Press.

Obama's second-term cabinet continues to take shape with three new members nominated to his national security and economic teams. TheWhite House considers legislation to curb gun violence. Obama and Karzai agree to speed up Afghan military transition. Joining Gwen: Alexis Simendinger, Real Clear Politics; James Kitfield, National Journal; David Wessel, Wall Street Journal; Christi Parsons, Tribune

President Obama in Europe for a G8 summit and his first Berlin trip since 2008, the U.S. attempts peace talks with Afghanistan and the Taliban, progress on immigration reform and failure of the farm bill in Congress, and the NSA disclosed that they foiled more than 50 terrorist attacks. Joining Gwen:  Peter Baker, New York Times; Indira Lakshmanan, Bloomberg News; Ed O’Keefe, Washington Post; Tom

An American soldier died in a Taliban attack at a military base, which came on the heels of a suicide bombing at a Kabul restaurant that killed 21 civilians. Gwen Ifill talks to Pamela Constable of The Washington Post and Omar Samad, a former Afghan Foreign Ministry spokesman, about instability in Afghanistan.

While Afghan President Hamid Karzai has resisted signing a long-term security agreement with the United States, the leader has met secretly with the Taliban to engage in peace talks, according to the New York Times. How would a Taliban peace deal work? Gwen Ifill talks to New York Times reporter Matthew Rosenberg.

According to a new survey, 89 percent of Iraq and Afghanistan War veterans say they would join the military again, while also reporting a spike in suicide, reduced physical wellness and feelings of disconnection. Gwen Ifill talks to two veterans, Tom Tarantino of Iraq and Afghanistan Veterans of America and Nathan Smith of Hire Heroes USA, as well as Rajiv Chandrasekaran of The Washington Post.

Chief foreign correspondent Margaret Warner joins Gwen Ifill for a closer look at the historic 2014 presidential election in Afghanistan, including the role of Afghan security forces in keeping polling safe, rumors of voting fraud, whether the United States favors a candidate, as well as what distinguished this election for average citizens.

On the Webcast Extra, Doyle McManus discusses the role the tea party will play in the 2014 midterm election. Karen Tumulty explores the relationship between West Virginians and the federal government. Plus is Nancy Pelosi really President Obama’s secret weapon? Alexis Simendinger explains their relationship. And Tom Gjelten reports on the drone strike that killed a Taliban leader this week.

President Obama declared 2014 a pivotal year in pulling nearly all U.S. troops out of Afghanistan by the end of 2016. To examine the timetable laid out by the president, Gwen Ifill gets views from former Defense Department official Michèle Flournoy and retired Army Gen. Jack Keane.