The idea of a powerful Jewish lobby" that has its gnarled fingers in the machinery of the government is an old and repugnant canard. In the modern era, even to broach the idea of a "Jewish lobby" is unacceptable. It's just not done in polite society -- even in situations in which there's some truth to it. That's why it was a bit of a shock last week when a 12,000-word article by two eminent professors -- Stephen Walt, the academic dean of Harvard University's John F. Kennedy School of Government, and John Mearsheimer, a professor of political science at the University of Chicago -- appeared in the London Review of Books under the title "The Israel Lobby." According to the two academics, the United States' "unwavering support" for Israel -- including the $3 billion a year we give in direct assistance -- is justified by neither strategic nor moral imperatives. Despite the common view, Israel is, in fact, the Goliath in the Middle East, not the David. It is...an avowedly Jewish state in which Arabs live as second-class citizens. "The bottom line is that AIPAC, a de facto agent for a foreign government, has a stranglehold on Congress," Walt and Mearsheimer contend. Public reaction has varied. Harvard has reportedly distanced itself from the original report. It seems silly to deny that a powerful lobby on behalf of Israel exists. The real question is how pernicious it is. My advice is to judge for yourself. The full article is available at http://www.lrb.co.uk/v28/n06/mear01_.html