Last week, El Salvador became the first government to recognise Bitcoin as legal cash. The International Monetary Fund (IMF) has expressed reservations about the proposed legislation. Max Keiser, a Bitcoin promoter, has proposed that El Salvador issue Bitcoin "Volcano Bonds" to subsidise mining operations. To repay the IMF debt, Keiser has asked Galaxy Investment Partners to issue $1 billion in Bitcoin 'Volcano Bonds.' According to Keiser, property prices in El Salvador are expected to quadruple this decade.