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The U.S. Environmental Protection Agency could soon issue a final ruling that aims to force oil companies to replace E10, gasoline mixed with 10 percent ethanol, with E15. This move could come just as widespread support for ethanol, which is made from corn, appears to be eroding.

A study found that 1 in 5 adults ages 20 to 55 who survive strokes will die within 20 years of the event — a rate much higher than doctors expected. The findings mean doctors need to pay a lot more attention to younger stroke survivors.

In the ongoing debate about the possible benefits of vitamin D supplements, a study suggests that the vitamin might indeed play a role in mildly reducing high blood pressure. The study was small and looked at just African-Americans, but the authors say the findings warrant further research.

Whether it's pan-fried or baked into crispy snacks, the Indonesian soybean cake called tempeh is catching on in America as an alternative to meat. For the residents of Indonesia's capital, Jakarta, it's basic, everyday fare.

Pakistan's isolated Swat Valley is ground zero for a quiet experiment by the Pakistani army: a little-known program aimed at re-educating thousands of young men who were taken in by the Taliban. Using international funds and a contingent of army officers, Pakistan is trying to turn would-be terrorists into law-abiding citizens.

Headlines:Capitol Conversation - State BudgetPipeline Leak Reveals Holes In Regulatory SystemThreat of Colony Collapse Coming to a Beehive Near YouCrane…

After years of gridlock, some observers say Congress could be close to a deal on new immigration policy. Guest host Celeste Headlee discusses this and other political news with Republican strategist Ron Christie and former adviser to the Obama administration, Corey Ealons.

Also: Texas officials are on high alert after prosecutor's death; drug maker Novartis loses a patent battle in India; Colorado prosecutors will say whether they plan to pursue death penalty in theater shootings.

Two county prosecutors fatally shot in Texas. Colorado's top prison official gunned down. And a dozen more members of the U.S. justice community — ranging from police to judges — victims of targeted killings since the beginning of the decade. An investigator who studies such crimes says he's worried about a possible trend.

The recruiting and vetting process already is under way for candidates who will run for Congress in 2014. For many candidates, part of that process involves hiring an investigator to look at their own background, as well as that of possible opponents. And there are even classes where you can learn how to do the digging.