How does this square with the Constitutional fact that all rights and powers not expressly given to the federal government are reserved to the states? I don’t recall seeing federal approval of state-published web sites being listed among the enumerated federal powers. This isn’t a freedom of speech issue, it’s much more important and central than that.
Maybe if Minnesota doesn’t take down its web site about prescription drugs as per the FDA’s demands, the federal government can invade, take it down forcibly, and tell the historians to record that they did it to end drug abuse.