BBC:

 

 

 

Elba Esther Gordillo in July 2006Ms Gordillo, 68, is known simply as "la maestra" or "the teacher"
 
 

Union head Elba Esther Gordillo, known as Mexico's most powerful woman, has been arrested on corruption charges.

Ms Gordillo, who runs the 1.5 million-member Mexican teachers' union, is alleged to have embezzled more than $156m from union funds.

 

Go to link