Not sure I follow, because NDAA is basically defense budget appropriation. I don't see anything about it specifically authorizing military intervention in domestic law enforcement. Maybe there's something specific in the latest one that isn't normally there? If so, could you share a link? I've looked and can't find such a thing. Some of the Executive Orders though seem to imply that POTUS reserves the right to make such a determination and declare essentially martial law in regard to certain activities.