The Founders created a Constitution that also included Separation of Powers with the President being the Commander in Chief and not a committee of commanders as you would have it.
“Checks and Balances” does not mean that they all share in the same powers it simply means that there is a way to keep eachother powers checked and that they are balanced in power.
Apparently you have no problem with modern day writs of assistance, but I have one big problem with our government body ignoring present laws in exchange of usurping certain rights and granting bodies of government expanded powers not enumerated in the Constitution. But hey, I don't live in a belief that hell is not paved in good intentions, “tyranny and security in exchange for rights” is.
"If Tyranny and Oppression come to this land, it will be in the guise of fighting a foreign enemy."--- Not some DUmmie or KOS whiner but James Madison, someone who had a pretty good understanding of a certain document he helped craft.