there’s an interview Jess Ventura did about 9/11 when he discovered that CIA had permanent positions at local police stations etc. they have people in every emergency service and yes they have people in delivery services. How else would they steal phones out of packages to use as burner phones?
The cia needs joint operations with other law enforcement to be able to legally operate in the U.S. so they embedded people everywhere to make this happen. DEA, FBI, you name it, they have moles there.