Crack in Los Angeles chemical tank may reduce explosion threat
A fragile sign of progress emerged in Garden Grove after authorities said they found a crack in a damaged tank holding toxic chemicals, a development that may be easing pressure as fears of an explosion have driven tens of thousands of people from their homes.
Roughly 50,000 residents in the Garden Grove area of Orange County, southeast of Los Angeles, were ordered to evacuate on Friday after the tank began leaking and sent fumes across a densely populated area about 8km from Disneyland.
Federal regulators sent in a team of…