I have no problem being 53. Why would I want to be 35 again? I want to discover who I am in my 50s. And if I tried too hard to look younger, it would seem that I was uncomfortable with who I am, wouldn't it?
Espionage, for the most part, involves finding a person who knows something or has something that you can induce them secretly to give to you. That almost always involves a betrayal of trust.