{HEAD ~ A method} and {TAIL ~ system} for airport or other building security where passengers or persons entering a building approach a check in point or check in counter and must undergo a positive identification by fingerprint scan, retinal or iris scan, face feature scan, or an other means of positive identification 
{ HEAD ~ A method } and { TAIL ~ system } for airport or other building security where passengers or persons entering a building approach a check in point or check in counter and must undergo a positive identification by fingerprint scan , retinal or iris scan , face feature scan , or an other means of positive identification
HEAD HEAD HEAD HEAD HEAD HEAD OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH