The U.S. Anti-Doping Agency has brought formal doping charges against cyclist Lance Armstrong.

The Washington Post, which broke the story, reports that as a result "Armstrong has been immediately banned from competition in triathlons."

The Post adds:

The Justice Department is walking away from its case against John Edwards.

Federal prosecutors have announced they will not retry the former Democratic presidential candidate on campaign finance charges. The decision comes soon after jury was unable to reach a verdict.

Government lawyers asked Judge Catherine Eagles to dismiss the case with prejudice, meaning they will not take another bite at the apple and try to resurrect their high profile case.

Florida Gov. Rick Scott is defending his effort to prevent non-U.S. citizens from voting in his state after the Justice Department filed a lawsuit to stop him on Tuesday.

Scott told NPR's Michel Martin on Tell Me More Wednesday that after learning his state didn't verify the citizenship status of registered voters, he's trying to ensure that the ballots of U.S. citizens aren't diminished:

Scientists Wednesday unveiled the first catalog of the bacteria, viruses and other microorganisms that populate every nook and cranny of the human body.

Researchers hope the advance marks an important step towards understanding how microbes help make humans human.

The human body contains about 100 trillion cells, but only maybe one in 10 of those cells is actually — human. The rest are from bacteria, viruses and other microorganisms.

If Twitter has its way, "That's a clown question, bro" will join "Don't tase me, bro" in the annals of popular rhetorical comebacks.

"That's a clown question, bro" comes from 19-year-old baseball phenom Bryce Harper. That's what he told a Canadian journalist yesterday, following his second three-hit game in a row.

The nearly 40 percent drop in median household net worth between 2007 and 2010 the Federal Reserve reported earlier this week was unarguably an arresting statistic. It confirmed for millions what they already knew, that the Great Recession and its aftermath have been a financial setback with few parallels.

CNN, which has been battered in the ratings game, announced today that it was canceling its politics show "John King, USA."

Wolf Blitzer's "The Situation Room" will expand to three hours at the end of this month to cover the gap.

The New York Times reports:

James Hetfield, lead singer and guitarist for the heavy metal band Metallica, makes a straight-forward appeal for help in finding a fan's killer in a new public service ad produced for the FBI, Virginia and local law enforcement agencies.

New analysis (pdf) of climate data finds that since 1912, the United States has warmed 1.3 degrees. But that warming is concentrated in certain states, some of which have "warmed 60 times faster than the 10 slowest-warming states."

All of that is according to Climate Central, a research and journalism non-profit that seeks to inform the public about climate and energy. The center looked at data from the National Climatic Data Center's U.S. Historical Climatology Network.

If it's true that America now resides smack dab in the middle of an interdependent global village, then we should probably pay attention to what other countries think about us — our values, our leadership and the presidential election of 2012.

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