Biochemists aren't really known for their sense of humor. But we recently met one who was warm, inviting and downright hilarious. "When chemists don't know what something is, they call it a substance," quips Shirley Corriher.
A hatchet-wielding man has been shot and killed by police after he attacked a group of patrol officers, wounding two on a busy street in Queens, New York.
One of the officers was struck in the head and another in the arm during the attack, which occurred about 2 p.m. ET on Thursday. A bystander, a 29-year-old woman, was hit in the back by a stray police bullet as the assailant was engaged by the officers.
To get to Abu Ghraib, I hitch a ride with an Iraqi military patrol. We start in Baghdad, where the convoy of battered Humvees weaves through heavy traffic but as we head out west of the capital, the roads empty and we hardly see any civilian cars.
In the weeks after 18-year-old Michael Brown was shot by a white police officer in Ferguson, Mo., protesters gathered daily at the site of a burned-out convenience store.
About a block away, the empty lot of a boarded-up restaurant became the campsite for a group of young activists called the Lost Voices. During the protests, the group "invited all the people who can't come out every day and wanted to share the experience with us," says Lenard Smith.