As events of 9/11/01 began to unfold the US Military started flying Air Cover missions over various cities including New York, Washington DC, and Central Florida (due to the Kennedy Space Center). Some people think these frequencies should not be published. However this is how I look at it. The military is not full of dumb or stupid people (the Clinton days are over). The military very well knows that there are many many hobbiest out there monitoring every word they say on the UHF MilAir Bands (and VHF Civial Air Bands). The military has some of the most advanced communications equipment in the world, if they have anything to say that we are not to hear, believe me, we wouldn't hear it! And yes while monitoring CAP flights over KSC I've heard a few digitally scrambled transmissions, however rare does it happen. Nearly 99% of the CAP transmissions have been "in the clear".

NOTE: Always have 121.5000 MHz programmed into your scanner. This is the Air Emergency frequency. It is this freq that you will hear CAP aircraft give warnings to Civil aircraft about airspace violations. I've heard on this freq several times "change course now or you WILL be fired upon!". Hearing those words can send chills up your back.