Something that stands out in the wars in Iraq and Afghanistan is the number of soldiers who are losing limbs. In fact it’s at twice the rate of any previous American war, report UTMB’s Norbert Herzog and David Niesel in this week’s installment of Medical Discovery News. Several years ago, the federal government decided to fund research for robotic hands. As a result, the “Luke Arm” was developed, named after the Star Wars character Luke Skywalker’s robotic hand. MDN airs locally at 10 a.m. Saturday on KUHF.