A group of members of congress in Chile have just sent a project of law that search to define the beginning of human personhood at the moment of conception , modifying current law that considers birth the beginning.
You have to consider that in Chile abortion is currently criminalized  and there is an ongoing debate and tension about emergency postcoital contraception, aka the “morning-after pill”.
I’m in the process to compile resources of previous debates about this issue in order to participate in the debate and offer a humanistic evidence-based perspective.
I would appreciate references to international law, precedents, strongest secular arguments or any other resource that could help doing advocacy to stop christian dogma becoming law in my country.
 http://sil.senado.cl/cgi-bin/sil_proyectos.pl?8367 (in spanish)
 http://en.wikipedia.org/wiki/Abortion_in_Chile (English wikipedia)