I believe it was a speech to the Aviation Club (October 2006?) and in it he criticised ATCOs for being loyal to their licence and not the company !
Can't find it anywhere .... keep googling ....
Here is
one of his speeches on SES. Anything in that to worry you ?
Not only does Mr B have a chip on his shoulder about how much ATCOs earn, but the pension briefings gave me the feeling that the Prospect and PCS officers do too.