SIP anuncia concurso nas redes sociais para incrementar a luta contra a impunidade e em defesa da liberdade de expressão LIMA, Peru (September 29, 2010)The Inter American Press Association (IAPA) announced here today it will shortly be calling for entries in an unusual song contest titled Lend Your Voice for Those Who Have No Voice as a new way to create through social networks peoples awareness of its campaign against impunity and to involve them in it.