Afghanistan Peace, Hooked, Peer Reviewed Rap

The Trump Administration promised to bring all US troops home from Afghanistan by May, but will the Biden Administration keep that promise? Also, a hip-hop professor got his rap album peer-reviewed and published in a university press. Then, how processed foods are intentionally engineered to light up our brains in ways that make them addictive. Also today: why illegal logging plummeted in one part of Indonesia when an affordable health clinic opened in the community, and the mysterious physics of paper crumpling.