7887 kHz, Your Home for Classic Cuban Espionage Radio

(Slate) The FBI documents that accompanied last week's arrest of 10 alleged Russian spies are alternately creepy—who knew the Tribeca Barnes & Noble was a hotbed of espionage?—and comical—turns out even foreign spies wanted to cash in on suburban New Jersey's real estate boom. With a nod to Boris and Natasha, the accused are also said to have used short-wave radio, a 1920s-era technology that, because of its particular place in the spectrum, can bounce off the atmosphere and travel across continents. The FBI's criminal complaint paints a picture of stateside spies hunkered down in front of their radios, year after year, in homes in Montclair, N.J.; Yonkers, N.Y.; Boston; and Seattle, furiously filling spiral notebooks with "apparently random columns of numbers" broadcast from the motherland. Continued