Unsurprisingly, the Central Intelligence Agency’s declassified archives show the Agency closely monitored the public statements of Soviet Premier Nikita Khrushchev, grouping them into categories from general “destruction of capitalism” lines to “atypically harsh statements.” Somewhat more surprisingly, one of those categories was “colorful statements,” which covered all the times no one was quite sure what Khrushchev was talking about - including his infamous “whistling shrimp” metaphor.