"Paul Sengupta" wrote in
message ...
"Andrew Gideon" wrote in message
online.com...
Isn't there some password requirement for one of the DC airports? I
recall
reading here (which naturally means that it must be true {8^) that some
pilots have been diverted after getting the password wrong; there's no
second try permitted.

Something that's read out over the radio?

Possibly. It could be like the military authentication codes.