Brazil does tit-for-tat and practices complete reciprocity :) Shortly after 9/11, the USA required Brazilian tourists to use a fingerprint scanner. A Brazilian

Brazil does tit-for-tat and practices complete reciprocity :) Shortly after 9/11, the USA required Brazilian tourists to use a fingerprint scanner. A Brazilian judge made a rule for American tourists to do the same: http://www.nytimes.com/2004/01/10/world/us-and-brazil-fingerprinting-is-it-getting-out-of-hand.html?mcubz=1&_r=0 http://www.nytimes.com/2004/01/10/world/us-and-brazil-finger... It was a huge mess at first because Brazil hadn't required any other countries to do it in the past. I suspect that customs threw away the fingerprints at first (it was done with ink originally), but it's done digitally nowadays. Brazil does this for all countries. American tourists, for example, have to pay $100 for a visa because Brazilians need to do the same in the U.S. To this day, it's considerably easier for Europeans to enter Brazil than Americans. While the U.S. hasn't rescinded the fingerprint law (that I know of), it's possible this policy prevented escalation...