China says Web crackdown to be "long-lasting"

China sought on Friday to portray its Internet crackdown as a campaign to protect youth from filth and nothing to do with stifling political dissent, with an official promising long-lasting action against "vulgarity." The Internet crackdown has been described by analysts as another step in the Communist Party's battle to stifle dissent in a year of sensitive anniversaries, including the 20th anniversary of the crackdown on the pro-democracy Tiananmen Square protests.