By Patricia Farrell Aidem CASTAIC -- A tiny mollusk is increasingly raising concerns across the Southland as the pesky creature invades waterways, where it threatens fish populations and clogs underwater pipes.

By PATRICIA FARRELL AIDEM Long delays await holiday weekend travelers heading to Northern California to celebrate summer's last hurrah -- if they don't heed Caltrans' advice and leave today.

Nearly 2,000 inmates rioted at a Southern California jail, throwing mattresses and banging heads against bunk beds, in an uproar that officials said stemmed from racial tensions. One inmate was killed.

By Sue Doyle\ Staff Writer CASTAIC - They crowded the room, eyes on the stage, waiting for 7 p.m. The group of about 55 looked like any other crowd that could be waiting for a concert to start or for a play to begin.