Didn't see this posted anywhere else, worth a listen despite views on the source, more about issues with the Purple Heart:
Purple Hearts Elusive For Traumatic Brain Injuries
http://www.npr.org/templates/story/s...ryId=129606127
High-level medical officials in the Army debated whether head traumas that are difficult to detect — often leaving no visible signs of damage — warrant the award, the emails show. Most people who sustain such blows, also known as concussions, recover on their own, but studies show 5 percent to 15 percent may have long-term impairments.
In 2008, Brig. Gen. Joseph Caravalho, then the top medical commander in Iraq, issued a policy blocking medical providers from even discussing the Purple Heart with soldiers who suffered mild traumatic brain injuries. Doctors were not barred from discussing the award with soldiers who have other injuries.
"In many cases," Caravalho wrote that concussions with "minimum medical intervention will not warrant this award."