A former US Central Intelligence Agency (CIA) official says Pakistan is the most dangerous country for the world. Citing the potential dangers emanating from its failing economy, rampant terrorism and one of fastest growing nuclear arsenal, Kevin Hulbert, a former CIA Station Chief in Islamabad wrote in a website for the intelligence community, that, "failure" of Pakistan would have implications for the world.<br/><br/>He said the US and the International Monetary Fund have given billions of dollars in financial assistance to Pakistan trying to guide them towards good behavior, but with only limited success.