HONG KONG (Reuters) - The world's oldest profession should be decriminalized and treated like any other business, international activists at a Hong Kong conference on prostitution said Sunday. Prostitutes are abused by policemen who demand free sex and then arrest them for soliciting and they are victimized by politicians who launch crackdowns to woo voters, speakers at the conference said. Activists also demanded better health support for prostitutes to prevent the spread of diseases including HIV (news - web sites)/AIDS (news - web sites), especially in less developed parts of the world. "The criminalization and stigmatization of prostitutes is fundamentally...