[monksy]

Not unless they require your id to buy the book or check it out.

The book store El Ateneo Grand Splendid requested my passport to buy the book "Argentinian Cooking". WTF

[pmoriarty]

Not only that, but some years back there was an expose about some government profiling software marking people as more likely to be terrorists if they didn't have a social media profile.

[diego]

Were you paying with a credit card? In Argentina the norm is to ask for id when paying with credit card, and if you're a foreigner the default would be to ask for your passport.