"Robert M. Gary" wrote:

I believe CAP flights are flying in the Washington ADIZ.

The purpose was for observation and emegency coordination. CAP also
operates the country's only emergency communication system. If the T1
lines go down that run your cell phone, land lines etc, you must use
the CAP radio relay network.

"CAP also operates the country's only emergency communication system" is
a massive exageration. True CAP has government (issued by NTIA, not FCC)
radio frequencies and radio repeaters (similar in function to VHF/UHF ham
repeaters except they operate on gov't issued CAP frequencies) but there
are a lot of emergency communcation systems out there, run by government
and private companies that utilize satellite, radio, landline, etc.

An interesting tidbit is that 122.9 Mhz is not only for MULTICOM and CTAF
at non-towered airports without FBOs but is also authorized for CAP use
for training, as 122.9 is available for government stations.
http://www.ntia.doc.gov/osmhome/alloctbl/foot_us.html [footnote US80]
For radio purposes CAP is a government entity. Legally it is a federal
chartered corporation.