A Temporary Flight Restriction is like ...

1. An _invisible_ concrete K-rail barricade instantaneously
placed in the path you routinely drive on the highway.

2. Unidentified Robo-Cop traffic violation cameras
arbitrarily and instantly placed at road intersections within
an area of 3,000 square miles.

3. ...

In the recent past, Temporary Flight Restrictions were stationary and
invoked nearly exclusively for emergency use, keeping the news media
and public at bay over natural disaster and accident sites. The TFR
is a logical measure for use in controlling air traffic when there is
no way to predict the time of an incident necessitating its use.

Today's traveling TFRs that surround governmental travel, TFRs that
are automatically activated while stadium events are occurring without
a central means for pilots to know the times of the events, etc., are
a travesty of bureaucratic dictum that corrupts the orderly design of
the National Airspace System.