Health Secretary Robert F. Kennedy Jr.'s decision to cut federal funding for mRNA vaccine research is the latest in a series of moves that have the potential to crush future medical breakthroughs and accelerate a brain drain.

This was one in a continuing line of moves that have put Kennedy's vaccine skepticism into public policy, though scientists say the vaccines are safe.

While anti-vaxxers are thrilled, experts warn that defunding mRNA development takes away our already-proven best weapon against future pandemics.