Today's Takeaway: GOP Debate Before the South Carolina Primary Listen Download Embed Share Share this on Facebook (Opens in a new window) Share this on Twitter (Opens in a new window) Share this via Email Top of the Hour: Romney Main Target at GOP Debate, Morning Headlines Romney Fights Off Attacks in South Carolina to Remain the Front Runner A Look at GOP Voters in South Carolina Joe Nocera on the Regulation of Big Banks China's Economic Engine Slows Down Survivor Recalls the Costa Concordia Crash Top of the Hour: Wisconsin Recall Effort, Morning Headlines SOPA Being Challenged Online and in the White House Frontline Doc Looks at Fukushima and Nuclear Energy The GOP and the Political Geography of South Carolina Wisconsin Petition Against Governor Scott Walker Arizona's Far-Reaching Ethnic Studies Ban Republican presidential candidates participate in a Fox News, Wall Street Journal-sponsored debate. ( Joe Raedle / Getty ) Produced by PRI and WNYC