Saudi Arabia, a close U.S. ally, has arrested a leading human rights activist. Samar Badawi is the sister of blogger Raef Badawi, who was sentenced to 10 years in prison and received 50 lashes in a public square last year. She also campaigned for women’s rights and the release of her husband, attorney Waleed Abu al-Khair, who is serving a 15-year sentence related to his activism. Amnesty International calls Samar Badawi’s arrest “the latest example of Saudi Arabia’s utter contempt for its human rights obligations.”