His father said his son had planned to come to Chechnya this week to visit his extended family, but was asked by the FBI to delay his trip.

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DeLay points out that his trip was fully reported and had destinations beyond the fairways of golf's birthplace.

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Commercial satellite Internet has been available for a number of years, but it is slow, capacity limited, and the trip to and from space adds a noticeable delay that can disrupt some applications.

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Mr Wulff said he had called Bild's chief editor simply to ask for a day's delay before publication to enable him to return from an official trip to the Gulf.

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The trip, by American envoy, Christopher Hill, follows a decision by the UN Security Council to delay voting on a resolution calling for sanctions against Pyongyang.

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