The FBI show up with a Blackhawk helecopter and the people working at the observatory were immediately evacuated. Local law enforcement were asked to help but were told nothing about what was going on.
In all likelihood there’s a reasonable and boring explanation. However. A mountaintop observatory in New Mexico doesn’t seem like a strategic target that would need protection from a terrorist threat, or anything like that, nor would there be risk of hazardous or toxic materials to protect the public from. So to evacuate the people in a hush-hush tactical operation sure does make the imagination wander.
How fascinating would it be if ….