I guess the alternative to just phoning up is building an operation that would take time and money. In all likelihood the boss is honest and wants to protect t

I guess the alternative to just phoning up is building an operation that would take time and money. In all likelihood the boss is honest and wants to protect the company. A lot of traditional intelligence did rely on the discretion and help of normal people. And in that cold war era spy's were not going to go on a murder spree like a terrorist might if tipped off.