Toyota workers raised safety concerns with bosses in 2006 memo

The notice told of worries about employees and vehicles over the automaker's push to trim costs and boost production.

Reporting from Toyota City, Japan - All six Toyota veterans around the table agreed: The memo they were about to send to senior management could damage their careers.

The workers had recognized a troubling trend. In recent years, the automaker had kicked into high gear to fill the booming U.S. demand for smaller, more gas-efficient vehicles.

The union men had watched the company take what they believed were dangerous safety and manpower shortcuts to lower costs and boost production.

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