Washington (CNN) -- Among the volumes of diplomatic communications released by WikiLeaks are frank observations about the character of world leaders, their quirks and their weaknesses. In an initial review of the documents turns up a number of observations from U.S. staffers that provide unusual insight into foreign leaders' thinking and behavior, from "voluptuous" companions to attention-seeking personalities. Saudi Arabia's King Abdullah proposed to U.S. officials that a Bluetooth-like device be implanted in Guantanamo detainees. During a March 22, 2009, meeting between Deputy National Security Adviser John Brennan and King Abdullah, the king suggested that an "electronic chip" would allow the tracking of the detainees' movements, as with Saudi horses and falcons.
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Communications discuss Libyan leader's relationship with nurse
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Saudi king suggested implanting tracking devices in detainees, cable says
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French President Nicolas Sarkozy called "challenging partner"
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Former U.S. Gen. Stanley McChrystal was also among topics
Some news outlets have reported that @placeholder diplomats called Sarkozy an "emperor with no clothes."