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.
Minority group is a term referring to a category of people differentiated from the social majority, i.e. those who hold the majority of positions of social power in a society, and may be defined by law. Rather than a relational  social group , as the term would indicate, minority group refers to the above-described.The differentiation can be based on one or more observable human characteristics, including, but not limited to: ethnicity, race, gender, wealth, health or sexual orientation.ociologist Louis Wirth defined a minority group as a group of people who, because of their physical or cultural characteristics, are singled out from the others in the society in which they live for differential and unequal treatment, and who therefore regard themselves as objects of collective discrimination..