In the wake of the horrific massacre at Ft. Hood, Army command is beginning to express concerns about a potential backlash against Muslim members of the military. Army Chief of Staff Gen. George Casey told CNN on Sunday that the last thing he would like to see result from this tragedy is anti-Muslim activity or the loss of diversity in military ranks. "You know, there's been a lot of speculation going on and probably the curiosity is a good thing," said Casey of accused killer Nidal Malik Hasan.