going to USA
joubert: Unless you have a work permit, the only way you could "work" would be if you come in on a B1/B2 visa for "business meetings".But you couldn't get paid by a US office - it would have to be your Argentinian employer paying you and in their interest to have you here for business meetings (of course the US office could reimburse the foreign office for expenses, but now your salary) - that effectively means you will need to interact with a US office of the company you work for in Argentina (or an associated firm, e.g. in the case of the Big Four).If you come for "business meetings" you should be ready to demonstrate such.