In the early 1950s the airport was served by the original Frontier Airlines (1950-1986) which flew DC-3's on a route from El Paso to Phoenix that included stops at Las Cruces, Deming, and Lordsburg, NM as well as Clifton, Safford, and Tucson, AZ.
A protected group is a group of people qualified for special protection by a law, policy, or similar authority. In the United States, the term is frequently used in connection with employees and employment.
protection(noun) the activity of protecting someone or something. the witnesses demanded police protection. protective covering, protective cover, protection(noun) a covering that is intend to protect from damage or injury. they had no protection from the fallout; wax provided protection for the floors.