Comparing pornography to heroin, researchers on Thursday called on Congress to finance studies on "porn addiction" and launch a public health campaign about the dangers. "We're so afraid to talk about sex in our society that we really give carte blanche to the people who are producing this kind of material," said James B. Weaver, a Virginia Tech professor who studies the impact of pornography. Internet pornography is corrupting children and hooking adults into an addiction that threatens their jobs and families, a panel of anti-porn advocates told the hearing organized by Sen. Sam Brownback, R-Kan., chairman of the Commerce...