Quote Originally Posted by SA Friday View Post
They can't be used to enforce law on civilians. Even though they are national guard, they were activated federally, Title 10, and therefore fall under the constraints of Posse comitatus act of 1878.
But he intends to use them to "stem the flow of guns and drugs across the frontier and not to enforce US immigration laws,"

I understand Posse Comitatus but the statement made and implied is that the NG will be used very selectivly so as not to interfear with illegal immigration.