We might imagine that if Iran were to collapse it might be a result of Israel winning the war against them or America bombing their nuclear site, or the international sanctions. However, these are not the greatest problems or threats to Iran and the regime. The greatest threat against Iran today is a lack of water. A severe drought combined with poor mismanagement of the country's water resources, have led to a crisis. A crisis so great that there is talk of having to move the population out of the capital city Tehran!