ATPMBA & protectthehornet
At the age of 12, I witnessed the aftermath of the collision of a EAL Connie and TWA B707 near the CMK VOR; the Connie broke out of the clouds overhead, fluttered around barely under control until crash landing about 2 miles away. At 33, I used one McAir's finest products, the ACES II seat, to get rid of the wreckage of my A-10 after it was hit very nearly head-on by a squadron mate in an A-10. I sincerely hope that is the end of my experiences with the subject.
To the original poster: surely, you gest. The very nature of planes going to and from airports limits the available airspace a great deal. Hell, the RN and the French Navy managed to collide two subs together under the open ocean. And how many subs are in the Atlantic at one time--two dozen? And the Atlantic is a helluva lot bigger than the USA and far fewer vehicles to worry about.
GF