Anarchist libertarians have long argued that a rights-respecting government is a contradiction in terms. A government, by its very nature, must have a monopoly on the use of force. That must be a coercive monopoly, since the government will not permit competition in the form of any competing defense agencies advocated by anarchists. Hence, government will always violate rights. What is wrong -- if anything -- with this argument? I've never gotten a good answer, despite often inquiring about it. Moreover, what assurances do we have that this government monopoly will not behave like other monopolies, such that it gets out of control, increases costs, and eventually fails?