Truckers to strike four shipping companies at Southern California ports
April 27, 2015 at 09:00 AM EDT
LOS ANGELES, April 27 (Reuters) - Truckers who haul freight from the ports of Los Angeles and Long Beach will go on strike against four ground-shipment companies on Monday, a Teamsters union official said, in a move that could revive labor tension at the nation's busiest cargo hub.