1 Are we seeing them in those areas because that’s where they are or because that’s where there is a large number of trained pilots + sensors? 2 Why are there

1 Are we seeing them in those areas because that’s where they are or because that’s where there is a large number of trained pilots + sensors? 2 Why are there so many types (and different colors too)? 3 Why would an (earthly) adversary risk a major diplomatic incident by sending their drones to the US like this?