The meaning of last night's protest

Last night's protest in Tel Aviv drew between 150,000 - 250,000 people and there are several articles today that discuss whether or not it was 'relevant.' The office of Prime Minister Ehud K. Olmert, which has an interest in dismissing the protest, downplayed it as 'irrelevant.' Olmert's associates downplayed the rally, saying it was "irrelevant" as long as there was no chance of the Knesset