GM Defence workers sent home because of security riskU.S. government says workers at London, Ont. plant who hold citizenship outside Canada must be screenedBy 08/21/2002|hrreporter.com|Last Updated: 04/10/2003 About 175 employees were sent home from a GM plant in London, Ont. that makes vehicles for the U.S. military on Tuesday because of security concerns.The workers at the GM Defence plant were sent home with pay because of their citizenship. The U.S. government has said only Canadian and American citizens can work in the plant without going through a security screening process. People who hold a dual citizenship in other countries must be screened first.CAW president Buzz Hargrove was outraged by the move. To Read the Full Story, Subscribe or Sign In Remember Me Forgot Password If you are a current Subscriber, please click here to set-up or update your login information.