The two historians credited the FBI for both the fieldwork and the technical brilliance (the coast guard’s files were classified at the time), and authors of more recent books have also praised the bureau for destroying the Nazi networks in South America. But the FBI didn’t intercept the messages. It didn’t monitor the Nazi circuits. It didn’t break the codes. It didn’t solve any Enigma machines. The coast guard did this stuff—the little codebreaking team that Elizebeth created from nothing.
