A 28-year-old police officer in the Mexican border town of Guadalupe, Erika Gándara, has been missing since gunmen stormed her home last Thursday. She was the last remaining cop in the town after her colleagues had resigned or been killed.

20-year-old criminology student Marisol Valles became the bravest college girl in North America when she stepped up to be police chief of Guadalupe, Mexico's second-most violent city after Juarez. Nobody else would accept the position.