When the general and specific similarities were combined, a profile emerged describing the event or activity that might have been observed. The profile, which contains elements common to at least two, and in some cases, all of the accounts, established a set of criteria used to determine what the witnesses may have observed. The profile is as follows: _a._ An activity that, if viewed from a distance, would appear unusual. _b._ An activity of which the exact date is not known. _c._ An activity that took place in two rural areas of New Mexico. _d._ An activity that involved a type of aerial vehicle with dolls or dummies that had four fingers, were bald, and wore one-piece gray suits. _e._ An activity that required recovery by numerous military personnel and an assortment of vehicles that included a wrecker, a six-by-six, and a weapons carrier. Based on this profile, research was begun to identify events or activities with these characteristics. Due to the location of the sites, attention was focused on Roswell AAF (renamed Walker AFB in 1948), White Sands Missile Range and Holloman AFB, N.M. The aerial vehicles assigned or under development at these facilities were aircraft, missiles, remotely-piloted drones, and high altitude balloons. The operational characteristics and areas where these vehicles flew were researched to determine if they played a role in the events described by the witnesses. =Missiles and Drones.= Missiles and drones were determined not to have been responsible for the accounts.[*] The areas where the alleged crashes took place were, in all likelihood, too far from the White Sands Missile Range. Missiles were equipped with a self-destruct mechanism that was activated if it strayed off-course or out of the White Sands Missile Range. There was never a program that required a dummy or doll to be placed inside a missile or a drone. However, missiles were launched from White Sands carrying monkeys and other small animals aloft for scientific research.[27] These projects were well documented, and none of these missiles landed near either of the two crash sites. [*] From September 1961 until March 1965 12 Atlas F intercontinental ballistic missiles (ICBMs) were deployed by the 579^{th} Strategic Missile Squadron in areas surrounding Walker AFB, N.M. These missiles were determined not to have been involved in the Roswell Incident.