Tens of thousands of people have marched in Buenos Aires and elsewhere in outrage at the astonishing frequency with which women are being killed in Argentina - the vast majority at the hands of their partners or former partners. Violence directed at women and girls is at the extreme end of the scale. But the protesters believe it grows out of the 'machista' culture - where men have to be macho, and women have to do as they are told. In many ways, Argentina is not a special case - we could, perhaps, ask the same question of many nations. But this week The Inquiry is focusing on Argentina because the protests started an urgent debate inside the country about why women are seen as disposable. And, also because the most powerful office in the land is held by a woman - Cristina Fernandez de Kirchner - twice elected president. Why is this power not trickling down? Why is Argentina still so sexist? (Photo: Argentina Femicide Demo. Credit: Getty Images)