Another risk factor should be added to that list this morning.
This morning, The Sun launches a full-blooded campaign to give the British people a say on the draft EU Treaty.
Gordon Brown is pictured on the front page of Britain's best-selling newspaper - putting up two fingers to the voter.
- A Dad's Army graphic on page three depicts invaders attacking Britain: those invaders include "lost vetoes", "an EU diplomatic service", "an EU human rights charter", "less control over immigration and asylum", and "an EU Foreign minister".
- On pages 4 and 5 Brown is accused of "surrendering power" and in a graphic three EU flags fly over the Houses of Parliament.
- A MORI poll for The Sun finds that Labour would be 17% ahead if Brown granted a referendum but his 8% lead over the Conservatives could drop to just 1% if he continues to deny the British people a say.
At last week's Giuliani dinner I was at the same table as the Editor of The Sun. Rebekah Wade spoke very passionately about this campaign. She promised that The Sun would run very hard on the issue throughout this week.