COLUMBIA SPY: One man's quest to remove trash from the Susquehanna River one canoe-full at a time

The plastic comes down one of the world's oldest major river systems in alarming volumes and relentless waves after each high-water event. But that doesn't discourage the 57-year-old John Naylor, who for the last four years has filled his canoe once or twice a week with plastics retrieved from the shallows, banks and shores.