But the United Nations' secretary-general, Kofi Annan, wrote to Mr Allawi, President George Bush and the British prime minister, Tony Blair, arguing that the attack could trigger an all-out boycott of the election by Sunnis, and therefore undermine its legitimacy.

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But trying to force Mr Trimble to sit in a cabinet with Sinn Fein, without prior decommissioning, might well trigger a Unionist walk-out.

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Looks like someone was trigger-happy at Palm and shot out the press release for tomorrow's announcement a little too soon!

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The fiscal cliff includes automatic, across-the-board spending cuts set to trigger at the beginning of next year if Capitol Hill fails to work out a deficit-reduction plan.

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Letting the inflation genie out of the bottle could trigger 1970s-style stagflation.

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In general, shifting the balance of fluids underground -- whether taking more out of the ground than is put back in or vice versa -- is likely to trigger seismic activity, the report concludes.

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