Are Modafinil's Brain-Boosting Benefits Hype Or Science?
Modafinil has been approved for treatment of narcolepsy, but it's often used to improve mental performance. The question is, does it work? A new study says probably not.
National
Toxic Tau Of Alzheimer's May Offer A Path To Treatment
Faulty forms of the brain protein tau trigger tangles inside and outside brain cells of Alzheimer's patients. Scientists say figuring out how to stop bad tau's spread from cell to cell might be key.
Acting Secret Service Head To Testify In White House Fence Jumper Probe
Last September's entry into the White House by an Iraq War veteran who scaled the fence along Pennsylvania Avenue is the focus of another hearing on Capitol Hill Wednesday.
Outreach Workers Look For Gains In Second Year Of Obamacare
Montana and Georgia both have minority populations whom health advocates hope to enroll for coverage. But advocates also fear that many in those communities won't qualify for subsidized coverage.
What You Need To Know About The Keystone XL Oil Pipeline
The long-delayed project is a jobs generator to some and an ecological disaster to others. Ahead of a key Senate vote, we revisit what the Keystone XL pipeline would do and why it's so contentious.
Senate Rejects Keystone XL Pipeline Bill, In A Close Vote
The controversial project to expand an oil pipeline running from Canada to the Gulf of Mexico has failed to get the approval of Congress.
Who Are The 5 Million Immigrants Covered By Executive Action?
"Up to five million" is the phrase that keeps popping up in reports about President Obama's plan to take executive action on immigration. Who are they?
Americans Think Ebola Is A Top Health Care Problem
A new poll shows Ebola is the one of the top health concerns of Americans, below access to health care and affordable health care. Robert Siegel talks to Frank Newport, editor in chief at Gallup.
NFL Suspends Adrian Peterson Without Pay
The NFL says Minnesota Vikings star running back Adrian Peterson will be suspended, without pay for the rest of the 2014 season. Peterson pleaded no contest to a felony charge after he injured his 4-year-old son while whipping him with a switch. The players union says it will appeal the decision.
FAA Can Regulate Small Drones: NTSB Reverses Judge's Ruling
Overturning a federal judge's ruling that the FAA was wrong to fine a man $10,000 for flying a small drone, the NTSB says the agency can regulate such drones as "aircraft."