The Tuskegee Experiment ended 50 years ago. One would have to have had a rather long career to have been employed at the CDC both then and now.
The career is long certainly but I think we all believe we are evolving in our careers. No one here would want to be accused of working in the same way or having the same knowledge in year 1 of their career compared to today.
The CDC has a lot to make up for - it also started in 1946, after tuskegee was started