CNSNews.com) - The Chicago chapter of the Service Employees International Union is apparently using hardball tactics to convince two regional hospital chains to allow its workers to unionize. The union is urging uninsured Chicagoans to seek free medical care at the 16 hospitals belonging to the Advocate and Resurrection health care networks in a campaign that could financially squeeze the chains and place patients at risk, according to a hospital association. The Service Employees International Union (SEIU) launched its Care for All campaign in September, but the union began targeting Advocate Health Care in 2003. That is when the SEIU...