Arizona mid-air collision: What is air traffic control tower and what role does it play? - All you need to know
Tens of thousands of planes take off, land and perform touch-and-goes at the Marana Regional Airport in southern Arizona ...
What to know about air traffic control towers after a midair collision in Arizona prompts questions
Do more U.S. airports need control towers? That's one of the questions that has arisen following a midair collision at an ...