Former directors of the CDC, spanning multiple presidencies, have voiced unprecedented criticism regarding the actions of Health and Human Services Secretary Robert F. Kennedy Jr. They state his recent decisions have severely weakened the nation's public health system. Kennedy has reportedly dismissed thousands of federal health workers, undermining programs that protect against various diseases and injuries. During a significant measles outbreak, he is said to have prioritized unproven treatments and minimized the importance of vaccines. Furthermore, he has canceled vital investments in medical research, leaving the nation vulnerable to future health crises. Kennedy has also replaced qualified experts on health advisory committees with individuals holding unscientific views. His decision to end U.S. support for global vaccination programs, based on flawed research, is also highlighted as a concern. Additionally, he has backed legislation that could cause millions to lose Medicaid coverage. The recent firing of CDC director Dr. Susan Monarez, which prompted other top officials to resign, has exacerbated these issues. The former directors deem this situation unacceptable and alarming for all Americans, irrespective of their political affiliations.