The National Football League has been confronting questions about head injuries and the danger of concussions among its players. But football is a contact sport beginning at a much younger age, and many states are implementing - or at least considering new policies - to protect student athletes from head injuries.
From Syria to Afghanistan, to Russia and Ukraine, the United States finds itself confronting some major foreign policy challenges. There are old rivalries and new one testing the limits of the United States.
NPR social science correspondent Shankar Vedantam regularly joins us to talk about matters related to individual and organizational behavior, but today, he's found some new research that's relevant to the way we think about foreign conflicts and he's in our studios. Shankar, welcome back.
Teenagers put a lot of stock in what their peers are doing, and parents are forever trying to push back against that influence. But with the advent of social media, hanging out with the wrong crowd can include not just classmates, but teenagers thousands of miles away on Instagram, Snapchat and Facebook.
In 1966, psychedelic drug advocate and former Harvard professor Timothy Leary appeared on the Merv Griffin Show.
"I'm in the unfortunate situation of being about 20 years ahead of my time," Leary said. When asked how many times he'd taken LSD, he answered 311. The audience gasped.
Leary was fired for experimenting with psychedelics on undergraduates, and before long, LSD was classified as a Schedule I drug, meaning it had "no known medical use." Research on the medical uses of LSD and other psychedelics came to a halt.
Chinese President Xi Jinping has made it a priority to eliminate corruption within the Chinese Communist Party.
"The [Communist Party] desperately wants the appearance of cracking down hard on corruption because they understand that rampant corruption is threatening the party's legitimacy," says Associated Press reporter Gillian Wong.
In a story published Sunday, Wong uncovers how that crackdown on corruption has led to another problem: abuse and torture of party officials.