The FDA has no power to stop the intelligence community running tests on patients but they do have the power to declare the results of the tests as not being enough to prove the resulting vaccines safe.
Do you really think that you have a better idea of the institutional power of the various players then the mayor of NYC? The FDA has a lot of relationships that allow it to exert power that are distinct from direct legal tools.
The FDA has no power to stop the intelligence community running tests on patients but they do have the power to declare the results of the tests as not being enough to prove the resulting vaccines safe.
Do you really think that you have a better idea of the institutional power of the various players then the mayor of NYC? The FDA has a lot of relationships that allow it to exert power that are distinct from direct legal tools.