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Position of prime minister in saudi arabia. he said he feared assassination and now hezbollah leader says they are detaining hariri. saudi arabia denying it is holding hariri. there are fears the proxy war may be moving to lebanon. we have the live report from istanbul. what is the latest? >> reporter: natalie, a high level ministry source in lebanon told cnn that they believe saudi arabia is restricting the movements and communications of prime minister hariri. the source also told cnn that t...