Singapore is taking local farming to the next level, literally, with the opening of its first commercial vertical farm.
Entrepreneur Jack Ng says he can produce five times as many vegetables as regular farming looking up instead of out. Half a ton of his Sky Greens bok choy and Chinese cabbages, grown inside 120 slender 30-foot towers, are already finding their way into Singapore's grocery stores.
The director of the Central Intelligence Agency David Petraeus submitted his resignation today, citing an extramarital affair.
"After being married for over 37 years, I showed extremely poor judgment by engaging in an extramarital affair," Petraeus, 60, said in a message sent to CIA staff. "Such behavior is unacceptable, both as a husband and as the leader of an organization such as ours. This afternoon, the President graciously accepted my resignation."
This interview was originally broadcast on Nov. 1, 2011. Don't Shoot is now out in paperback.
In 1985, David M. Kennedy visited Nickerson Gardens, a public housing complex in south-central Los Angeles. It was the beginning of the crack epidemic, and Nickerson Gardens was located in what was then one of the most dangerous neighborhoods in America.
This is SCIENCE FRIDAY. I'm Flora Lichtman, filling in for Ira Flatow this week. Last week, when Hurricane Sandy sent a surge of salty water into cities and towns up and down the East Coast, among the casualties were thousands of research subjects: lab mice. A building at New York University's Medical Center flooded, and thousands of mice and rats that were being used to study cancer, heart disease and all kinds of other medical disorders died.