The original legislation forbidding propaganda and lies by the media was called the Smith-Mundt Act of 1948.
These two guys saw how powerful propaganda was.
Yes, Obamination gutted it in 2012 calling it the Smith-Mundt “Modernization” act of 2012.
The original Act is here:
https://www.usagm.gov/who-we-are/oversight/legislation/smith-mundt/