"However unpleasant our age may appear to the future, surely one would expect scholars and students to visit us, if such a thing were possible at all. Though they might try to disguise themselves, accidents would be bound to happen — just as they would if we went back to Imperial Rome with cameras and tape-recorders concealed under our nylon togas. Time travelling could never be kept secret very long."
Wrote Arthur C. Clarke in 1985.
I encountered that today... doing a NYT acrostic from November 2012. The most interesting clue was: "Bill Clinton, for Nixon, or George W. Bush, for Reagan."