Nation-World

The regulations, if they survive the expected legal challenges, could shut down hundreds of coal-fired power plants and create a boom in the production of renewable energy.CORAL DAVENPORT and GARDINER HARRIS
State records show Walter Palmer has held hunting and fishing licenses in Minnesota, Florida and Alaska, and he claims to have killed a polar bear.Matt Delong | Star Tribune (Minneapolis)
The vice president’s advisers are reaching out to Democrats who have not yet committed to Hillary Clinton or are concerned she is vulnerable.Amy Chozick
Ken Paxton, the Republican attorney general of Texas and a former longtime lawmaker, has been indicted by a grand jury on charges of securities fraud and of failing to register with the state securities board.Manny Fernandez
People who use their phones while they walk have modified their behavior, resulting in a more cautious gait, a new study indicates.Beatrice Gitau
Current rules are unclear about whether the Kentucky man lawfully defended his family's privacy or illegally destroyed someone's personal property.Dawn-Marie Cornett
The Marine Corps declared its version of Lockheed Martin's F-35 fighter ready for limited combat operations, a milestone for the Pentagon's costliest weapons program.Tony Capaccio and Julie Johnsson
An experimental Ebola vaccine tested on thousands of people in Guinea seems to work and might help shut down the waning epidemic in West Africa, according to interim results from a study published Friday.Maria Cheng
Banking regulators have rejected a financial institution's bid to be the first to serve the expanding marijuana industry in Colorado.Nathaniel Popper | The New York Times
As a drought tightens its grip on the Pacific Northwest, burning away mountain snow and warming rivers, state officials and Native American tribes are becoming increasingly worried that one of the region's most precious resources — wild salmon — might disappear.Darryl Fears
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