Actually, the government has accepted no obligations to you. According to the theory the government has an obligation to protect you from criminals but according to the government it doesn't. (...) If you go to case law, if you try to sue the government for not providing some service to you, you will loose. It can be as clear as possible that the government was negligent in failing to provide a service, you will still loose. Because it is in official doctrine of the United States government, that they're not obligated to provide any service to any individual. There are cases where the police failed to protect somebody from a crime and then later they go and try to sue the police department - they always loose.

There is one exception, the one case in which according to the court the government is obligated to protect you. It's if you are in government's custody at the time. So the irony is, they're actually obligated to protect criminals (...) but they're not obligated to protect anyone else, anyone who hasn't been arrested.

Michael Huemer "The Illusion of Authority"