It’s been nearly six months since Maj. Nidal Hasan carried out his massacre of fellow Army service members at Ft. Hood, Texas. Investigations have failed to conclude that radical Islamic motives were behind the attack despite volumes of evidence and the testimony of eyewitnesses at the scene of the killings. So why won’t the government admit what fueled the killings? Why is it vital for the government to do so? How has this added to the anguish of the families of those killed and wounded? We ask Rep. John Carter, whose Congressional district contains Ft. Hood.