Warsaw Ghetto expert Ruta Sakowska dies at 89

Historian Ruta Sakowska, one of the world's leading experts on the World War II Warsaw Ghetto, has died.

Sakowska died Monday in Warsaw at the age of 89.

Sakowska, who was born in Vilnius in 1922, served as director of the Ringelblum Archives of the Jewish Historical Institute in Warsaw....