Nothing better illustrates Israeli Prime Minister Benjamin Netanyahu's determination to condition his public to a unilateral strike on Iran than the obloquy visited this month by his circle on the - these days - popular state President Shimon Peres.
When Peres dared to say publicly that Israel should act only in concert with the US, Israelis were told that he had a long history of misjudgments, including his opposition to the 1981 solo strike on Saddam Hussein's nuclear plant at Osirak, Iraq.
But Peres is not alone. The public opposition to a strike by the immediate past heads of Mossad and the internal security service Shin Bet widely reflects similar views among most of the serving security establishment, excluding Defence Minister Ehud Barak, but including the Chief of General Staff Benny Gantz.
Given that Netanyahu's record is that of a fairly risk-averse Prime Minister, is he going to ignore their strongly held view that the benefits - a short delay in Tehran's nuclear programme of three years at most - are greatly outweighed by the dangers? If not, Netanyahu could be bluffing. The strike threat having helped to persuade the Western powers to tighten sanctions against Iran, he could even now be using it to tighten them further.
If he is not bluffing then the motives for a possible strike before the US elections are twofold. The military one is that Iran's nuclear installations, some deep underground, will soon enter what Barak has called a "zone of immunity" - the point at which they become impervious to a unilateral strike by Israel, which lacks the deep penetration bombs the US has.