![The Current from CBC Radio (Highlights) show](https://d3dthqtvwic6y7.cloudfront.net/podcast-covers/000/034/254/small/the-current-from-cbc-radio-highlights.jpg)
Summary: Donald Trump and his supporters have a plan for a wall on the U.S. Mexican border. But a wall authorized by George W. Bush is already there, and it's affecting everything from wildlife migration to flooding.
Summary: Donald Trump and his supporters have a plan for a wall on the U.S. Mexican border. But a wall authorized by George W. Bush is already there, and it's affecting everything from wildlife migration to flooding.