Those are critical points. We have 2 things to go on, personal experience or prior beliefs, nothing that is going to change anyone's mind. We have a third .. public perception. People vote their emotions more than their logic; politicians who want to stay in office pay very careful attention to public perception, and scientific research FUNDING is often in the hands of those politicians. If what "they" know they're going to find .. because they have more information than we do .. does not align with voter emotion, that might be a reason to suppress evidence at least for the time being.