Under cross-examination he said clerical error may have accounted for such a high figure and that only four people had "definitely" been tied to voter fraud.

CNN: STORY HIGHLIGHTS

In the end, it was Davydenko who brought the world number three back into the match with a poor game at 4-4, making a backhand error before going for too much on a cross-court forehand and dragging it into the tramlines on break point.

BBC: Djokovic edges past Davydenko

The non-responsiveness of the economy might be because the various policies are at cross-purposes at one another or that all the policies are in error, or some mix.

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The speed at which things can go wrong and the margin for error correction in a car is radically different from airplanes under most conditions, and the cross-cumulative effects of contextual disturbances means that car companies cannot really simulate everything in advance.

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