HAVANA - The wife of a political activist imprisoned in a crackdown on dissent said she was detained Wednesday by authorities who warned her to stop publishing a magazine once produced by some of the jailed dissidents. Claudia Marquez told The Associated Press that two officials picked her up at home and questioned her at a police station for three hours. Marquez said the officials asked her about the magazine De Cuba - From Cuba - a collection of original writings by some of the island's independent journalists. Just two monthly editions of the magazine were published before the March...