| "infiltrating and influencing revolutionary | groups" This happens in the US now, but usually the undercover official isn't attempting to convince them not

| "infiltrating and influencing revolutionary | groups" This happens in the US now, but usually the undercover official isn't attempting to convince them not to do something bad. They are either encouraged to do something bad, or allowed to, so that they can be caught in the act and everyone can get a good pat on the back for a job well-done in capturing the 'bad guys.'