Frank......... for someone who would seem to be quite intelligent you really do argue along very dumb lines.
Your point about being able to track and identify an aircraft by some terrorist types to make some nasty outcome clearly is directed at things a bit larger than your Auster old chap! heck I doubt they are targeting my Retard Vehicle either
So lets get back to the supposed threat you propose.....A B737/A320 or larger!
No go back to the times when you could not cancel SAR at Monto below 5000.........how many B727/DC9's were there without VHF or HF coverage.....and were below 5000 at Monto too!
Frank.........just forget it, you are on a hiding to nothing with this current argument. Be realistic for just this once hey
Digital Terror threat cancelled folks....back to normal viewing!
J