Transsexual Taira Tolaba, left, arrives at the civil registry looking to get information on the process to change gender identity, in Buenos Aires, Argentina, Monday, June 4, 2012. Argentina's gender identity law that won congressional approval with a 55-0 Senate vote earlier this month went into effect Monday. Transgender rights activists say Argentina now leads the world by granting people the right to change their legal and physical gender identity simply because they want to, without having to undergo judicial, psychiatric and medical procedures beforehand. (AP Photo/Natacha Pisarenko)