Yeah, I suppose that's right. And as you say, it's very practical. > Keep in mind that the social number in USA is apparently also supposed to be secret (like

Yeah, I suppose that's right. And as you say, it's very practical. > Keep in mind that the social number in USA is apparently also supposed to be secret (like a password) which sounds absolutely crazy to me. That's very true, reminds me of this video [1] by CGP Grey, giving some background of the issue. [1] https://www.youtube.com/watch?v=Erp8IAUouus https://www.youtube.com/watch?v=Erp8IAUouus