Lol. Are you being absurd, or are you serious? Tracking admittance or distribution of something in a third world country for the purpose of food aid, and you wa

Lol. Are you being absurd, or are you serious? Tracking admittance or distribution of something in a third world country for the purpose of food aid, and you want to scan their iris? You could do stamps on their hands, tickets (you know, like they've used at carnivals, events, sports complexes, 50,000+ person concerts, etc) with a supply and administration cost of near $0