Like a good politician, the Council on American-Islamic Relations (CAIR) repeatedly proves adept at inserting itself into national debates. When presidential candidate Ben Carson said he could not support a Muslim president, CAIR gathered reporters to express outrage and call on Carson to drop out of the race. When a 14-year-old Texas boy was detained for bringing what he said was a homemade clock to school that a teacher feared might be a bomb, a CAIR official expressed outrage and sat by the boy's side during news conferences and interviews. And in the immediate aftermath of the December 2 mass...