A 22-year-old woman in England thought she was going blind in one eye. She could always see fine out of her left eye. But on some nights, the right eye failed her. All she could see out of it were vague shapes in the room.
At first, it happened about two or three times a week. Then it started happening every night.
When she went to the doctor, her vision appeared normal. So did brain scans. But it was a disturbing trend.
Demanding action on gun control, about 30 Democratic members of the United States House of Representatives are staging a sit-in.
"Lawmakers are grouped in the well of the chamber, in front of the speaker's dais and in chairs in the front row," NPR's Sue Davis reports. "Some members are literally sitting on the floor of the House."