"President Sarkozy yesterday threatened to wreck the London summit if France’s demands for tougher financial regulation are not met.
France will not accept a G20 that produces a “false success with language that sounds good but contains no commitments”, his advisers said.
Asked if this meant a possible walk-out, Xavier Musca, Mr Sarkozy’s deputy chief of staff for economic affairs, said: “A basic rule with nuclear deterrence is that you do not say at what point you will use the weapon.”"
This is what we have been saying for months.