Speaking in South Korea, President Barack Obama said that the U.S. can further reduce its nuclear arsenal, while maintaining its security. Some insist that a credible nuclear deterrent requires a sizeable stockpile of weapons.
Florida's "Stand Your Ground" law faces increased scrutiny after the death of Trayvon Martin, the unarmed teen who was shot and killed by neighborhood watch volunteer George Zimmerman. State Rep. Dennis Baxley (R-Fla.) co-sponsored the law and says it does not appear to be applicable to that case.
A new romantic comedy opens in theaters this week, and it stars a scientist as the likeable, and only slightly nerdy, main character. The film's writer and director, former scientist Valerie Weiss discusses Losing Control, and why she made the shift from lab bench to big screen.
As part of an NIH-funded project, Bradley Smith, associate dean for creative work, research and graduate education at the University of Michigan, posted a collection of optical images and MRI scans of human embryos to the web. Intended for a clinical audience, Smith talks about the unexpected response he got from the public.