Can anyone explain what TFR's are supposed to do?

"Ron Natalie" wrote in message
. ..
|
| "Corky Scott" wrote in message
...
| I haven't figured out why TFR's exist. How are they supposed to
| protect the President and/or whatever else?
|
| That's the general principle.
|
| Does the Secret Service and the FAA really think that just having a
| "no flight activity" within an imaginary circle sixty miles across
| will really stop a determined assailant?
|
| The FAA ain't running the circus. I suspect that the Secret Service
| feels that by keeping all (or at least) most friendly traffic out of the
| area, it makes it easier to spot the unfriendlies.
|

The trouble with that theory is, what can the Secret Service do about it?
They *might* shove the President under a desk or something. But does anyone
seriously believe that the Secret Service (or anyone else) would risk the
political fallout from shooting down an innocent airplane?