The answer is, of course, no and the reason has to do with the difference between causation and correlation.

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Kerry responded that there is no difference between what either Edwards or he would do about trade as president.

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Several epidemiological studies showed there was no significant difference between people who take supplements and those who do not, said Anding, a registered dietitian and director of sports nutrition at Texas Children's Hospital.

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Meanwhile, we parents will continue to explain to our kids, who have already grown up trying to overcome feelings of isolation and difference, that what Lanza did has no more to do with them than if he were diabetic or left handed -- and I'll admire and love my son more every day for teaching me to think out of the box.

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He said the "crucial" thing was "what do we do now as a country" and on that issue "there is absolutely no difference" between himself, the prime minister and the coalition parties.

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Certainly no one would intend to do that, but understanding how putting your words together can make a difference is important.

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