According to a pair of lawsuits made public on Tuesday, Facebook board members overpaid the Federal Trade Commission (FTC) an extra $5 billion in fines to settle a complaint by the agency and keep CEO Mark Zuckerberg from being held personally liable for the Cambridge Analytic data breach. The lawsuits claim the massive payment was contingent upon the FTC dropping plans to sue Zuckerberg and COO Sheryl Sandberg…