First of all, this passport thing has nothing to do with any of your civil or constitutional rights. You people are being melodramatic because that's what your blogger overlords told you to say. Secondly, yes, if a person knowingly poses a public health risk, that person should be taken into custody and sent to a medical facility or a jail. You can't knowingly infect other people with HIV. You can't contaminate other people's drinking water. You can't install asbestos or use lead paint when you're building on someone else's property. Your children can't go to school until they get vaccinated. And with any luck, you dirty half-humans will be prevented from boarding a plane I'm on.