He said that he stayed outside so that the FBI could keep an eye on him and that he was at not afraid for his life.

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"You definitely want to keep an eye on him, " said Margaret, the more up-to-speed of Trimble's two nurses, when Lucy described the details of Davis's latest attack.

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So keep an eye on him when he remembers.

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"By the time he comes back, the FBI case is closed and, again, no additional information comes back from the Russians to keep an eye on him or that he's on his way back to your country, " Fuentes said.

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When Alwaleed travels, an advance communications team sets up a private phone network and satellite link, putting him in contact with his office in Riyadh and letting him keep an eye on the Arab TV channels in which he owns a stake.

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