ONTARIO, Calif. (AP) - Hundreds of protesters marched through San Bernardino and Los Angeles counties in opposition to a federal crackdown on illegal immigration resulting in 160 arrests. As many as 1,000 demonstrators hoisted signs and shook maracas while trekking from Ontario to Pomona on Sunday, accusing immigration authorities of unfairly targeting Hispanic communities. "Why are they targeting Latinos?" Abel P. Medina, an organizer and member of Hermanidad Mexicano Nacional Ontario, said during the march. "We haven't received any numbers (showing) they have arrested any Canadians or any Europeans." U.S. Border Patrol agents have stopped people on streets and coming...