The UN has ended its campaign with comic book heroine Wonder Woman, a spokesman says, less than two months after her appointment sparked outrage. The superhero had been declared an honorary ambassador to promote messages about women's empowerment and gender-based violence. The character's "sexualised" appearance was one element critics seized on to deem the choice inappropriate. A petition against the selection gathered nearly 45,000 signatures. The UN did not explain why the project with Wonder Woman, announced in October, would end on Friday. But spokesman Jeffrey Brez said campaigns using fictional characters often lasted no longer than a few months,...