[FreedomCalls]

The 1972 Biological Weapons Convention banned research, development and production of bioweapons.

Consequently all bioweapons research has to be conducted under the guise of research on defenses against bioweapons or public health research.

This is the correct answer.

[FarCenter]

Fort Detrick /ˈdiːtrɪk/ is a United States Army Futures Command installation located in Frederick, Maryland. Historically, Fort Detrick was the center of the U.S. biological weapons program from 1943 to 1969. Since the discontinuation of that program, it has hosted most elements of the United States biological defense program.

https://en.wikipedia.org/wiki/Fort_Detrick

At least until 2019.