Poland, it is estimated that 200,000 Polish children with purportedly Aryan traits were removed from their families and given to German or Austrian couples, and only 25,000 returned to their families after the war. The Stolen Generation of Aboriginal people in Australia were affected by similar policies, as were Native Americans in the United States and First Nations of Canada. These practices have become significant social and political issues in recent years, and in many cases the policies have changed. The United States, for example, now has the 1978 Indian Child Welfare Act, which allows the tribe and family of a Native American child to be involved in adoption decisions, with preference being given to adoption within the child's tribe. From the 1950s through the 1970s, a period called the baby scoop era, adoption practices that involved coercion were directed against unwed mothers, as described for the U.S. in The Girls Who Went Away. More recently the military dictatorship in Argentina from 1976 to 1983 is known to have given hundreds of babies born to women captives who were then murdered to be brought up by military families. In Spain under Francisco Franco's 1939–75 dictatorship the newborns of some left-wing opponents of the regime, or unmarried or poor couples, were removed from their mothers and adopted. New mothers were frequently told their babies had died suddenly after birth and the hospital had taken care of their burials, when in fact they were given or sold to another family. It is believed that up to 300,000 babies were involved. These system—which allegedly involved doctors, nurses, nuns and priests—outlived Franco's death in 1975 and carried on as an illegal baby trafficking network until 1987 when a new law regulating adoption was introduced. On January 29, 2010, a group of ten American Baptist missionaries from Idaho attempted to cross the Haiti–Dominican Republic border with 33 Haitian children. The group, known as the New Life Children's Refuge, did not have proper authorization for transporting the children and were arrested on kidnapping charges. After the process for the adoption of 400 children by families in the US and the Netherlands was expedited, Unicef and SOS Children urged an immediate halt to adoptions from Haiti. Jasmine Whitbread, chief executive of Save the Children said: "The vast majority of the children currently on their own still have family members alive who will be desperate to be reunited