This is more than a bit unnerving

In short, the next time there is a national emergency of some sort the President of the United States has it in his power to seize control of every thing.

This directive establishes a comprehensive national policy on the continuity of Federal Government structures and operations and a single National Continuity Coordinator responsible for coordinating the development and implementation of Federal continuity policies. This policy establishes "National Essential Functions," prescribes continuity requirements for all executive departments and agencies, and provides guidance for State, local, territorial, and tribal governments, and private sector organizations in order to ensure a comprehensive and integrated national continuity program that will enhance the credibility of our national security posture and enable a more rapid and effective response to and recovery from a national emergency.

Read it all here:
National Security and Homeland Security National Directive, hot off the White House site. It seems to have "come in under the radar" earlier this month. Do you remember hearing anything about it? I don't.
I shudder to think that anything that might be considered as a "national emergency" might rear up its head before the Shrub is out of office. However, it remains to be seen whether or not the next incumbent of the Oval Office is goint to be any different. One thing I am pretty certain about is that if this directive is ever invoked, it is a one way trip.