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Previous estimates of the climate-warming gas were based on the rough number of methane-emitting sources on the ground — such as factories, refineries, stoves, swamps, landfills and cattle herds. But by directly measuring levels of methane in the air instead, a new study puts the total much higher.

"When we pull back the curtain now, the mess is disturbing," says House Energy and Commerce Committee Chairman Fred Upton, R-Mich., of the latest revelations. These documents call into question whether contractors can fix the website as promised by the end of November.

As the leader of Senate Democrats, Harry Reid has been in a lot of fights — but this one may be different, in that Reid has drawn a line. After a meeting with other congressional leaders and President Obama on Wednesday, Reid said: "The one thing we made very clear ... we are locked in tight on Obamacare."

As the G-20 convenes in Cannes Thursday, the European Union's roller-coaster debt crisis tops the agenda. Last week, European leaders asked cash-rich China to back the E.U.'s bailout fund. Some economists saw the request as marking a shift in the global economic order.

Businessman Herman Cain recently entered the top tier of Republican presidential candidates. A story published Sunday evening by Politico alleges that Cain harassed two female employees when he ran the National Restaurant Association in the 1990s. On Monday, Cain appeared at two public events, a discussion of his 9-9-9 tax plan at the American Enterprise Institute as well as a speech and Q-and-A session at the National Press Club.

Tina Fey came to Washington last night for a live appearance where she was interviewed by NPR's Michel Martin, then took questions from the audience. Rachel Syme offers some thoughts about the appearance.

Ivory Coast is struggling to get back on its feet after a five-month presidential tug-of-war that claimed hundreds of lives and displaced more than a million people. But more trouble may be brewing for the incoming president, with infighting among former rebels who propelled him to power.

Russia's President Dmitry Medvedev and his Prime Minister Vladimir Putin are sending confusing signals about which of them intends to stand as candidate in next year's presidential election. Moscow is rife with speculation over which of the two men will emerge on top.

Cereal manufacturers may soon be forced to overhaul their advertising campaigns as restrictions on what foods can be marketed to children are debated in Washington. Kate Harvard of The Weekly Standard argues political, economic and societal implications of not-so-sweet deal.

One coalition says the decriminalization of polygamy would help root out child sexual assault among those practicing "the principle."