(Zero Hedge) El Salvador, whose economy last year suffered its deepest crash in four decades, became the first country to adopt bitcoin as legal tender on Tuesday, a real-world experiment proponents say will lower commission costs for billions of dollars sent from abroad and which could spark widespread adoption among challenged, developing countries suffering from rampant inflation, but which critics warned may fuel money laundering.The revolutionary monetary change – first previewed here in June – means businesses should accept payment in bitcoin alongside the US dollar, which has been El Salvador’s official currency since 2001 and will remain legal tender.