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A pair of new studies find that taking aspirin daily may significantly reduce the risk of many cancers and prevent tumors from spreading. Many experts view the findings as promising, but public health officials warn that the risks may still outweigh the benefits.

Transcript

NEAL CONAN, HOST:

This is TALK OF THE NATION. I'm Neal Conan in Washington. Romney recovers in Puerto Rico and romps in Illinois. House Republicans draw a line. Santorum wants a do-over, maybe in Louisiana. It's Wednesday and time for a...

RICK SANTORUM: Saddle up...

CONAN: ...edition of the Political Junkie.

PRESIDENT RONALD REAGAN: There you go again.

VICE PRESIDENT WALTER MONDALE: When I hear your new ideas, I'm reminded of that ad: Where's the beef?

SENATOR BARRY GOLDWATER: Extremism in the defense of liberty is no vice.

The co-founder of Invisible Children, who was detained by police in San Diego last week after residents complained he was naked on a residential street, was not on drugs, his wife said.

Jason Russell, who was catapulted into the national spotlight after his video on Ugandan warlord Joseph Kony went viral, has been shown in videos naked and apparently talking to himself on the streets of San Diego.

Quoting "a White House official," CNN and USA Today are reporting that in a speech tomorrow President Obama will push for fast-tracking the construction of the southern portion of the Keystone XL pipeline.

USA Today reports: