Members of Congress are demanding answers to their questions about scandalous behavior photographed at Abu Ghraib prison in Iraq. “How could this happen?” they ask. But this is not the first time that they have been warned about personal indiscipline and inferior training in the military. Maj. Gen. Antonio Taguba observed in his scathing report that military police soldiers at Abu Ghraib were weak in basic military occupational skills. How could this happen? Consider the effect of co-ed basic training, imposed on the Army in 1994. Two years later, sex scandals erupted at Aberdeen Proving Ground and basic training facilities....