Violence is Biggest Challenge Facing Women, Says Top Women's Rights Advocate

Violence is the biggest challenge facing women around the world as progress in gender equality is erratic and at times a baffling contradiction, said the top official at U.N. Women ahead of International Women's Day.

Phumzile Mlambo-Ngcuka, executive director of U.N. Women, said despite decades of pushing for equal rights, no one nation could call itself gender equal with countries making advances in some areas yet backsliding in others.