Lack of air traffic control tower questioned

Two people are dead after a mid-air collision between two small planes on Wednesday at a regional airport in Arizona.
The Cessna 172S and Lancair 360 MK II collided at the uncontrolled Marana Regional Airport Wednesday. Authorities in Arizona ...
Tens of thousands of planes take off, land and perform touch-and-goes at the Marana Regional Airport in southern Arizona ...