"Consular cards were not designed to be identification and no treaty recognizes them as such. Legal travelers, visitors and long-term residents carried passports, visas or green cards for that purpose."

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To attain the rank of grand master of memory, you must be able to perform three seemingly superhuman feats. You have to memorize 1,000 digits in under an hour, the precise order of 10 shuffled decks of playing cards in the same amount of time, and one shuffled deck in less than two minutes. There are 36 grand masters of memory in the world.

— Joshua Foer