Citizen Letter Forwards Tesla Teleforce Specification to J. Edgar Hoover

Two days after the New York Times publishes its article on Tesla's teleforce weapon, a citizen letter dated 24 September 1940 lands on J. Edgar Hoover's desk at the Department of Justice in Washington. The writer encloses the article and urges the War Department to ensure 'constant guarding' against Tesla's possible seizure by foreign agents, noting the technology 'should be of vital importance to our War Department as well as to that of other nations now controlled by insane dictators.' The letter is preserved in FBI file 100-2237 and is one of the earliest documents in the Bureau's Tesla holdings.