Bank, energy shares pull TSX lower in choppy trade

By John Tilak TORONTO (Reuters) - Canada's main stock index fell in volatile trading on Wednesday as shares of banks declined after recent quarterly earnings reports and energy shares slipped after the price of crude oil dropped. Bank shares have been choppy since the major banks began reporting results last week. It was a mixed quarter overall, with Bank of Nova Scotia capping off the earnings season by posting a weaker-than-expected quarterly profit on Tuesday. Investors also processed ne