CLIPPED WINGS, Service 'a facility supplying some public demand ' .
Now you'll be saying 'What about water, telephones and power!', well the difference is that if ATC cock it up, the results are rather more deadly, rather more quickly, to rather more people.
Some things are best left in non-profit-making hands- even if they are a bit inefficient. I'd rather have that than a money-making scare-a-minute ATC system!
KEEP IT SAFE OUT THERE!