Now the police even has tanks and army level guns, and the army of course has 1000x the resources, airplanes, drones, etc.
And of course, at the time the states were indeed independent and fighting fiercely for that. Now (and ever after the Civil War) it's all a charade, from what I understand, and it's all as the Federal government says, not really a union of independent states (as independent countries), but a state divided in N prefectures that just happen to be called states...