Sounds like he’s saying we’ve been unprotected for a while, because the Air Force has not maintained the air defenses we supposedly have, and nothing has been planned or installed to replace it. Is that how you read this?
Our eyes in the skies are worn out. No new airframes to replace them.
A good book to read is Jetstream, The Breakup of America. The author predicts that by 2012, we would be attacked thru Canada and Mexico. It was written in 1996.
It was supposed to be a three part series but he never wrote the last two. the first one basically predicts all that is happening now.