[stevenwoo]

Arguably the Espionage Act could be interpreted and used to prosecute any speech that is not supportive of the US government and lately for any federal whistleblowers, it seems pretty incongruous with the First Amendment but the law has been supported by the Supreme Court multiple times and here we are.

[i_am_nomad]

It’s true that Americans are pretty extremist about freedom of speech, but even they understand that speech in the service of actual espionage should be punished. Outside of that I’m unaware of how the Espionage Act has been used to suppress speech.

[dTal]

Let me enlighten you:

https://en.wikipedia.org/wiki/Espionage_Act_of_1917#History