Apparently, the slippery slope from gay marriage to polygamy is not too far fetched for countries that have already legalized gay marriage:

Study recommends repealing polygamy ban in Canada

OTTAWA — A new study for the federal Justice Department says Canada should get rid of its law banning polygamy, and change other legislation to help women and children living in such multiple-spouse relationships.

“Criminalization does not address the harms associated with valid foreign polygamous marriages and plural unions, in particular the harms to women,” says the report, obtained by The Canadian Press under the Access to Information Act.

“The report therefore recommends that this provision be repealed.”

The research paper is part of a controversial $150,000 polygamy project, launched a year ago and paid for by the Justice Department and Status of Women Canada.

The paper by three law professors at Queen’s University in Kingston, Ont., argues that Sec. 293 of the Criminal Code banning polygamy serves no useful purpose and in any case is rarely prosecuted.

Instead, Canadian laws should be changed to better accommodate the problems of women in polygamous marriages, providing them clearer spousal support and inheritance rights.

The slippery slope just got steeper.

The full article can be found here.