Do not turn your eyes from the horror of the Sandy Hook Elementary School massacre in Newtown, Conn. Twenty children, their teachers and aides, their school principal shot repeatedly, in some cases beyond recognition, by a 20-year-old wielding a semiautomatic assault weapon. As he has shown in his moving words after the horror, President Obama clearly is grief-stricken, as we all should be, about the children murdered in their innocence.