Something strange happened on Friday. Two topics that Republican presidential candidates normally can’t talk about enough -- Planned Parenthood and terrorism -- were both a part of the major news story of the day. Yet not one of them thought it was worth commenting on. (Ted Cruz was the first to comment on it the following day in Iowa.) Normally, when a gunman starts randomly shooting up a place somewhere in the United States, politicians are the first to give condolences or prayers or strong words for future terrorists.