With Kennedy leading HHS, this about-face is easy to parse as yet another anti-vaccine move. But the assault on mRNA is also proof of another kind of animus: the COVID-revenge campaign that top officials in this administration have been pursuing for months,

"A bad day for science, and huge blow to our national security, this decision will have dangerous repercussion," one scientist said.

CDC staffers are voicing frustration over RFK Jr.’s past vaccine comments, following Friday’s shooting at the agency’s headquarters in Atlanta that left one officer dead.