U.S. Secretary of State John Kerry (right), along with British Foreign Secretary Philip Hammond (left), speak to reporters in London on May 12. They tried to assure European banks they won't be penalized for conducting legitimate business with Iran. Critics say it should not be up to the U.S. to encourage investment in Iran.
Members of the Mothers of Plaza de Mayo human rights group demand information about missing relatives during their traditional Thursday march in Buenos Aires on March 3. The women began demonstrating in 1977.
Victor R. Caivano/AP