The military contractor responsible for a huge chemical leak in southern California is also manufacturing parts for F-35 jets for Israel. A 7,000-gallon chemical tank ruptured and threatened to explode at the GKN Aerospace plant in Garden Grove, California, last week. It forced over 50,000 people to evacuate. Crucially, GKN is a British engineering company, headquartered in Birmingham. The tank contains thousands of gallons of methyl methacrylate. This is a highly volatile and flammable substance used to make plastic. Only recently, it was deemed at risk of a major spillage or an explosion. Garden Grove is a predominantly working-class and immigrant city…