Where Is the FBI’s Rubicon?

Everyone knows that in January 49 BC Julius Caesar, about to lead part of his army across the Rubicon river, said “Alea iacta est,” “the die is cast.” Except that, according to Plutarch, what he really said was “Ἀνερρίφθω κύβος,” “let the die be cast,” and he did not so much say it as quote it, since the already-proverbial line came from the Greek playwright Menander. Anyway, in bringing an army across the stream that separated cis-Alpine Gaul from Italy proper, Caesar had committed treason.