Alright then. Suppose I came to you and put a gun to your head...Sorry, a sword to your throat. And then just stood there. "I'm just here to keep track of you! Nothing else, just to know where you are at all times. The sword? What sword? Oh! This sword. It's just here in case someone else, not YOU of course, someone else does something bad. But you'd never do anything bad right? Right, of course not! By the way, we have a mission for you. It's totally voluntary, but gosh, we sure would appreciate it if you would do it."

If you really don't see how that's slavery? Then you're more naive than I thought, which, I will admit, would be impressive.