Do more U.S. airports need control towers? That's one of the questions that has arisen following a midair collision at an airport in southern Arizona last week.

It marks the second fatal incident at an Arizona airport in the past 10 days. On Feb. 10, the pilot of a private jet owned by Mötley Crüe singer Vince Neil was killed after a runway collision between two aircraft at Scottsdale Airport.

As investigations into the Arizona mid-air collision continue, debates over air traffic safety, regulation, and infrastructure modernization remain front and center.

The FAA said there were two people on board a Lancair plane and two people on board a Cessna plane. The police in Marana said two people were confirmed dead. The FAA and the Natio

The National Transportation Safety Board said it is investigating the collision that happened near Marana Regional Airport on the outskirts of Tucson.

Tens of thousands of planes take off, land and perform touch-and-goes at the Marana Regional Airport in southern Arizona every year. Without an air traffic control tower, it's a calculated dance that requires communication by pilots.