In Argentina, human rights icon Hebe de Bonafini died Sunday at the age of 93. Bonafini was one of the founders of the Mothers of the Plaza de Mayo in 1977, after two of her sons were disappeared by Argentine security forces during the country’s brutal U.S.-backed military dictatorship. Bonafini and other mothers of the disappeared led frequent protests in Buenos Aires’s Plaza de Mayo in defiance of the dictatorship, wearing white scarves on their heads, which became a symbol of their struggle. In the decades that followed, they continued to fight for justice for the tens of thousands of people disappeared, tortured and killed during Argentina’s “Dirty War.”