The President has tapped Chuck Hagel to be his next defense secretary. The former Republican senator will have plenty of challenges to face, including how far to go with what's known as military human enhancements.
These enhancements include everything from robotic implants to drugs and gene therapy, which can make soldiers stronger and faster, but also include great inherent risks.
Maxwell Mehlman is a professor of law and mediciane at Case Western Reserve University School of Law, he's also one of the authors of a new study on some of these risks.