another real fact: "Between 1964 and 1973, the United States conducted a covert "Secret War" in Laos, dropping over two million tons of ordnance during 580,000+ bombing missions, "
The revelation of secret bombing campaigns was one of the main reveals of The Pentagon Papers by Daniel Ellsberg. This arguably turned American public opinion against the war decisively as it revealed the USA had no cohesive strategy for winning and was repeatedly lying to the American public about the multiple fronts of the war in Southeast Asia for more than twenty years.
I must say it’s a little disappointing that things like “secret bombing campaigns” getting declassified don’t lead to much public response.