How did the CBS Reagan mini-series get to be so controversial? “The producers of ‘The Reagans’ were so intent on re-examining their subject’s legacy that they missed the missile-defense shield surrounding Mr. Reagan, now incapacitated by Alzheimer’s disease. He is not just a beloved former president; he is the Moses of the conservative movement. Rather than treading lightly, the stars gloated about how controversial their film would be.”