Transsexual Daniel Walter Alvarez shows his police credential outside Congress in Buenos Aires, Argentina, Wednesday, May 9, 2012. Argentina's Congress is set to approve on Wednesday the Gender Identity Law, which allows citizens to change their gender in public records, including birth certificates and national identity cards. (AP Photo/Natacha Pisarenko) (AP2012)
Transvestites pose for a picture with heart shaped balloons outside Congress in Buenos Aires, Argentina, Wednesday, May 9, 2012. Argentina's Congress is set to approve on Wednesday the Gender Identity Law, which allows citizens to change their gender in public records, including birth certificates and national identity cards. (AP Photo/Natacha Pisarenko) (Copyright 2012 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistribu)
Erica Castiglia, right, and Yolanda Kozak, hug each other outside Congress in Buenos Aires, Argentina, Wednesday, May 9, 2012. Argentina's Congress is set to approve on Wednesday the Gender Identity Law, which allows citizens to change their gender in public records, including birth certificates and national identity cards. (AP Photo/Natacha Pisarenko)
Erica Castiglia, right, and Yolanda Kozak, kiss outside Congress in Buenos Aires, Argentina, Wednesday, May 9, 2012. Argentina's Congress is set to approve on Wednesday the Gender Identity Law, which allows citizens to change their gender in public records, including birth certificates and national identity cards. (AP Photo/Natacha Pisarenko) (AP2012)
People pose for a picture outside Congress in Buenos Aires, Argentina, Wednesday, May 9, 2012. Argentina's Congress is set to approve on Wednesday the Gender Identity Law, which allows citizens to change their gender in public records, including birth certificates and national identity cards. (AP Photo/Natacha Pisarenko) (AP2012)
A man holds a fake oversized identification card that reads in Spanish "My identity, my right" outside Congress in Buenos Aires, Argentina, Wednesday, May 9, 2012. Argentina's Congress is set to approve on Wednesday the Gender Identity Law, which allows citizens to change their gender in public records, including birth certificates and national identity cards. (AP Photo/Natacha Pisarenko) (AP2012)
Transvestites wait outside Congress for the approval of the Gender Identity Law in Buenos Aires, Argentina, Wednesday, May 9, 2012. Argentina's Congress is set to approve on Wednesday the Gender Identity Law, which allows citizens to change their gender in public records, including birth certificates and national identity cards. (AP Photo/Natacha Pisarenko) (AP2012)
Transvestites wait outside Congress for the approval of the Gender Identity Law in Buenos Aires, Argentina, Wednesday, May 9, 2012. Argentina's Congress is set to approve on Wednesday the Gender Identity Law, which allows citizens to change their gender in public records, including birth certificates and national identity cards. (AP Photo/Natacha Pisarenko) (AP2012)