Marco Rubio, the U.S. Senator from Florida, who is such a success story, (his father having immigrated from Cuba. I can still remember Rubio speaking at the Republican Convention saying "these United States" OK I didn't think he was talking about any other United States, but go on.) Anyway Rubio was recently asked "How old is the earth?" And because he did not immediately say 4 billion years the combined weight of 25 years of television science journalism immediately came down upon him and he was flattened like a pancake. And I am sure the interviewer smiled in his heart of hearts and said "Gotcha".