its not a mystery !we had a military attache type , D.E.A.,OR POSSIBLE C.I.A. TYPE go to the PROM BANGKOK address..he said it was on a dead end street looking like a rundown shanty-shack with an old rusted dilapidated taxi parked in front..he spoke to a worker inside and was told DROR was in AFRICA.imo i believe his friend THAICAN,an oil platform petroleum engineer at the time,also checked out the address..imo