The "Five O'clock Follies" was the daily press briefing presented in Saigon by MACV that was always painting a rosey picture of the war and touting the body count of the day. The press began to report the truth of the war to the homefront after catching a ride to the field and seeing first hand the chaos of the battles.
Military conscription, which caused protests and riots.
Probably economic problem, disunity within Vietnam (Yes- some wanted Vietnam to be communist, they were called Vietcong and while the rest wanted a republic type of government which resulted into North & South Vietnam that was later in the end of 1970s, the failure of South Vietnam which is a democratic nation, North Vietnam had attempt and succeed in reunify Vietnam into communist.) and under French's harsh leadership.
Yes, some are still there.
Vietnam War
Some examples of scientific controversies that have sparked debate within the scientific community include the debate over climate change, the safety and efficacy of genetically modified organisms (GMOs), and the use of certain vaccines such as the MMR vaccine. These controversies often involve conflicting research findings, differing interpretations of data, and ethical considerations.
The humidity.
Some controversies related to social skills include the debate over whether social skills can be taught or are innate, the impact of technology on social skills development, and the role of cultural differences in defining what constitutes appropriate social behavior.
It is poisonous
What is a "blood related nickname?" Some GI or US public nicknames for the Vietnam/or the war were; "The Nam", "Indochina", or "Southeast Asia."
Military conscription, which caused protests and riots.
Some border problems with Red China, Laos, and Cambodia (bad neighbors).
Defense related employment was quite common.
seizures and liver problems like cancer.
the people are polluting the hydrosphere.
slavery and civil war
Obesity related issues (heart disease, diabetes), smoking related problems (lung cancer, emphysema), and alcohol related issues (various liver diseases)
Some might consider that there is a controversy over accepted medical therapies for the treatment of cancer vs "alternative" medicine for the same. There is none for me as I believe accepted, FDA and AMA approved therapies are the only treatments, but, the "alternative medicine" crowd is out there and very vocal in their beliefs. I am unaware of any real controversies relating to heart disease.l