The National Showdown in Wisconsin

Wisconsin's Republican Governor Scott Walker's become the symbol of conservative efforts to "slay the beast" of government. That's made him the target of public unions who want to regain the right to collective bargaining. We size up next week's recall election and what's at stake for the presidential campaign in a crucial swing state. Also, Syria's latest massacre of citizens could bring international action. On Reporter's Notebook, Exxon Mobil may be an American company, but the drive for profit from resources around the world has led it to form its own foreign policy — which may conflict with that of the United States.

Banner image: Republican Wisconsin Governor Scott Walker speaks to supporters as he campaigns at the Waukesha Victory Center on May 24, 2012 in Waukesha, Wisconsin. Photo by Darren Hauck/Getty Images