Argentines eyeing a financial boost are lining up by the thousands to have their irises scanned in exchange for a few crypto tokens as part of an online biometrics project under scrutiny in several countries.For volunteering their data, initial participants receive 10 tokens each of Worldcoin's own cryptocurrency, the WLD. In Argentina, with its notoriously unstable exchange rate, the value differs wildly; when Sosa and Marrero received theirs, 10 tokens were worth the equivalent of about $80.