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.
Async DR Protection Domain: A standard protection domain is a defined group of VMs that are backed up locally on a cluster and optionally replicated to one or more remote sites. This type of protection domain uses asynchronous data replication to create snapshots. Protection domain names must be unique across sites. A VM can be in at most one protection domain. A protection domain on a cluster is in one of two modes: Active: Manages live VMs; makes, replicates, and expires snapshots. Inactive: Receives snapshots from a remote cluster.