In this installment of NPR's series Inside Alzheimer's, we're sharing a recent video of Greg O'Brien at home on Cape Cod, Mass. A longtime journalist, O'Brien was diagnosed with early onset Alzheimer's disease in 2009.

The first time I interviewed Greg O'Brien, back in January, I asked him what he was most afraid of.

After Thursday's mass shooting at an Oregon community college, which left nine people dead and more injured, President Obama aired his frustration over gun laws in the U.S. At a news conference Friday, he called on voters to push their representatives to take action.

"You just have to, for a while, be a single-issue voter, because that's what is happening on the other side," Obama said. "And that's going to take some time. I mean, the NRA has had a good start."

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Copyright 2015 NPR. To see more, visit

Airstrikes on a clinic in the Afghan city of Kunduz have killed patients and staffers from Doctors Without Borders. Al Jazeera Arabic's Washington Bureau Chief Abderrahim Foukara tells NPR's Michel Martin that, together with the Taliban capturing Kunduz, "this is really bad news."

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Food has become a serious issue over the past decade or so — how it's prepared, where it comes from, even how it's grown or raised.

It's gotten that way in no small part due to Mark Bittman. In cookbooks, newspaper columns and online videos, Bittman has become a national advocate for simple, healthful, environmentally responsible food.

The sheriff in Roseburg, Oregon, where a gunman killed 9 students at Umpqua Community College earlier this week, said that the shooter killed himself during a confrontation with police at the scene of the campus assault.

Douglas County Sheriff John Hanlin, speaking at what he said would be the final scheduled new conference on the Thursday shooting, said that the Oregon medical examiner has identified the cause of death of the shooter as suicide.

Amy and Dave Freeman are willing to risk brutal winters, thin ice and hordes of hungry mosquitoes to raise awareness about impending mining operations on the border of public lands in northern Minnesota.

A year without a shower takes a tremendous amount of dedication and passion. Why do the Freemans believe the Boundary Waters Canoe Area Wilderness is worth the sacrifice?

"The Boundary Waters belong to all of us. It's a national forest, it's federal lands. It's like a Yellowstone or a Yosemite," Dave says. "There's no other place like it on Earth."

The Church of Jesus Christ of Latter-day Saints has lately been confronting questions about ethnic diversity, gender equality and LGBT rights.

Now the church's believers, and its critics, are watching closely to see what a membership shake-up might mean for the church. The senior governing council of the Church of Jesus Christ of Latter-day Saints is expected to name three new leaders to the Quorum of the Twelve Apostles after the fairly recent deaths of three elder members.