Smoking looks a lot different these days. It’s been on the decline, due to restrictions at work and in bars and restaurants. But there is one segment—teenagers who use e-cigarettes—that is growing fast. And health experts are worried about the consequences.
On The 21st: Ten states and Washington D.C. have legalized recreational marijuana. Is Illinois next in line? We’ll dive into what’s next if the legislature takes up the issue next year. And after seven years, the publication Rookie Mag has come to an end. How is it being remembered? But first, last month a scientist in China said that he used a gene-editing technique called CRISPR on two babies and that those babies have already been born. We check in with U of I’s Rachel Whitaker on what CRISPR is, and why so many scientists are upset about how it was used.
In a lab at George Washington University, painted lady butterflies flutter in mesh houses. This is where assistant professor Arnault Martin and his research group use the new gene-editing technique CRISPR to unlock secrets about the colors and spots on the butterflies’ wings.