Progress in GM Strike: Negotiators reported more progress as General Motors Corp. and United Auto Workers representatives tried to resolve a parts plant strike that has shut down production of the popular Saturn car. Dave Kimmel, president of Local 1714 in Lordstown, Ohio, said some progress was made Sunday in more than six hours of negotiations. Talks were to resume today. Kimmel declined to give details but indicated that a job security issue remains in dispute. The union represents workers at the Lordstown fabricating plant, where 2,400 workers are idled. They walked out Thursday, complaining about job security and health and safety issues. The key issue is GM’s attempt to close a tool-making shop and eliminate 240 jobs.