Why isn't Canada blocking the Welland Canal? Other trade war questions answered

As Canada and the US engage in a trade war, experts are analyzing the potential effectiveness and risks of Canadian retaliatory measures like export taxes. While some suggest targeting US energy imports, economists warn that such moves could permanently damage trade relationships and lead to long-term revenue loss.
Why it matters
Understanding the limits of economic leverage in trade disputes is crucial for assessing the outcome of international trade conflicts.
September 9 | Duration 9:14 How can Canada win a trade war with the U.S. when leverage isn't equal? Andrew Chang explains how Canada is retaliating against massive tariffs levied by a neighbour 13 times its economic size. (Photo credits: The Canadian Press, Reuters, Adobe Stock and Getty Images) Social Sharing Reading through the emails that readers send to CBC News, one gets the impression they don't want just "elbows up" in the Canada-U.S. trade war, but also sticks, knees, skates and whatever else might be lying around.
One of the most common questions is some variation of, "Why isn't Canada doing X?" — where X is a tactic or tariff the reader supposes will hit the U.S. where it hurts.
Here's a look at some of those suggestions and what key players or observers have had to say about them.
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