Therefore, if the RFID reader 200 has made a globally addressed wireless communication 420 to all RFID transponders 100 asking if any RFID transponder 100 has {HEAD ~ a change} in status, an RFID transponder 100 will not respond if in fact it has no change in {TAIL ~ status} to report 
Therefore , if the RFID reader 200 has made a globally addressed wireless communication 420 to all RFID transponders 100 asking if any RFID transponder 100 has { HEAD ~ a change } in status , an RFID transponder 100 will not respond if in fact it has no change in { TAIL ~ status } to report
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 HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH