The March 2015 issue of The Spectrum Monitor is now available for publication. You can get a copy here: http://www.thespectrummonitor.com/index.aspx
In this issue I have some information on federal use of aviation resources and the frequencies that might be used. Unfortunately, one frequency got mangled in the publication process. The list of CBP AIR frequencies should have AIR 9 as 163.4750 MHz, N293.
You can check out the entire list in the CBP Updates tab on the blog home page: http://mt-fedfiles.blogspot.com/p/cbp-frequency-updates.html