Mr Bradley is facing this problem too, which is why he is reacting defensively rather than going on the offensive himself (by, for example, bringing up the vice-president's 1996 fund-raising activities at Buddhist temples).

ECONOMIST: The Democratic race: Nasty isn’t nice | The

They may use tracking stocks defensively, to protect their original share prices from the impact of risky new ventures, rather than to chase the money that flows from the high market valuations of dot.com ventures.

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