American Express is dependable and has both short- and long-term growth opportunities.September is here, and it looks like the Federal Reserve's Federal Open Market Committee just might lower its benchmark interest rate again when it meets next week. Many stocks, especially those of companies that are particularly sensitive to interest rates, are already climbing in anticipation.As a bank and credit card network, American Express (AXP -0.28%) is very sensitive to interest rates. It was a standout stock last ...