As scientific punch-ups go, this is shaping up to be a good one, with blows (albeit polite ones) being thrown across the Atlantic.

科学界打架往往是好事，大西洋两岸你打我一拳，我回敬你一拳，尽管是客气地打。

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It's so twisted that the views of the only candidate with military experience, Rep. Ron Paul, are routinely dismissed as being naive by a handful of warmongers who don't look as if they've ever thrown a punch in their lives.

CNN: Three new rules for U.S. presidents

As Mr Prescott walked past the group, an egg was thrown at close range and the politician was seen to throw a punch and a fight ensued.

BBC: Police defend Prescott security

Without that agreement, economists warned that the one-two punch of sequestration and the expiration of the 2001 and 2003 Bush tax cuts could have thrown a still-struggling U.S. economy into reverse.

CNN: Explains: Sequestration