Source?

Section 310 of the Communications Act, which bars licenses from being “granted to or held by any foreign government or the representative thereof,” was written in 1934 [1]. The Foreign Agents Registration Act was passed in 1938 in response to (slash fear of) Nazi propaganda [2].

[1] https://www.law.cornell.edu/uscode/text/47/310

[2] https://perspectives.ushmm.org/collection/propaganda-and-the...