For the moment, we already have something semi-substantive. We should have had it long ago. This is not Kafka’s Mitteleuropa. It’s our government and our information. We should not have had to wait for leakers to get our hands on it.
Do we want our presidents empowered to imprison people simply for their beliefs?
In short, the power to give or withhold a declaration of war was generally viewed by the Founders as tantamount to the power to decide whether hostilities would take place, with the well-recognized exception of defense against direct attack. This placed the real war-making power in the hands of the Congress, not the President.