Those are evidently mobile labs for surveillance.
A bioweapons lab is a level 4 lab. These aren’t common at all. They deal in hot zone bugs. A mobile lab couldn’t be constructed to level 4 biosafety, you’d be having outbreaks from things getting loose.
The globalists are not concerned with safety.
Nor are they concerned with publicizing everything they’re doing.
Having hidden bioweapons labs would be of highest level priority for the globalists.