Hugh Pickens writes "Michael Grynbaum writes that 40,000 ultra-Orthodox Jewish men filed through the gates of Citi Field to discuss the dangers of the Internet. For the attendees, many of whom said they came at the instructions of their rabbis, it was a chance to hear about a moral topic considered gravely important in the Hasidic community: the potential problems that can stem from access to pornography and other explicit content on the uncensored, often incendiary Web. Schlomo Cohen, 24, said he came to Citi Field because the rally was a good way to remind his community to keep temptation at bay. 'Desires are out there,' said Cohen. 'We have to learn how to control ourselves.' The rally was sponsored by a rabbinical group, Ichud Hakehillos Letohar Hamachane, that is linked to a software company that sells Internet filtering software to Orthodox Jews. Those in attendance were handed fliers that advertised services like a 'kosher GPS App' for iPhone and Android phones, which helps users locate synagogues and kosher restaurants. 'No one here is a Luddite who denies the manifold benefits that technology has brought to mankind as a whole,' says Eytan Kobre, spokesman for the event. 'But at a certain point, a mature, thinking individual stops and says, "I've got to make a cost-benefit analysis [of] what ways it is enriching my life, [and] in what ways it is undermining it."'"