I was watching Fox News and they were discussing whether the law needed to be changed so US citizens could be interrogated at length without being told their Miranda rights. The rationale is that the suspect is willing to give information if he knows it will not be used against him in a court. Also, he will be more pliable with no lawyer present. And if the information is very valuable, this is a price worth paying. (At least I think this was the gist of the Five on Fox crowd. I was a bit inebriated after a boozy conference meal at the Princeton Conference on Political Economy.)
The Five on Fox usually rail against rampant Leviathan – an uncontrolled government usurping the rights of honest, gun toting, red meat eating citizenry. That same Leviathan, if given the power to use domestic enemy combatant status, would apply it more and more broadly. A domestic enemy combatant is actually harder to define objectively than an assault weapon. A slippery slope would undoubtedly ensue and regular citizens would face being interrogated as enemy combatants. This is the risk of adopting the view of the illustrious Five.
But what about the benefits of greater Leviathan power, the power to interrogate true enemy combatants? We know Leviathan breaks the law at the risk of being held to account in court. There is no point running this risk in run of the mill cases. But there is a benefit in true enemy combatant cases. No jury will convict Leviathan in the latter case – the court of public opinion will replace the court of law. But egregious violations in run of the mill cases will surely lead to convictions by triggering the feeling “that could have been me” in jury members. So, roughly speaking, the law will be broken if and only if the case merits it.
Hence, there is no need for “domestic enemy combatant” status w.r.t. Miranda rights.
HT: I believe Becker and/or Posner made a similar argument years ago. If someone can tell me the reference I would be grateful.