A member of the human rights group Madres de Plaza de Mayo (Mothers of the disappeared) stands next to the railroad at Constitucion station in Buenos Aires, November 10, 2009, in support of subway workers on a one-day strike demanding free unionization. Reuters Pictures 1 week ago

A member of the human rights group Madres de Plaza de Mayo (Mothers of the disappeared) stands next to the railroad at Constitucion station in Buenos Aires, November 10, 2009, in support of subway workers on a one-day strike demanding free unionization.