Business groups are raising concerns about the broad effects of another round of labour disruptions in the transport sector as Canada faces shutdowns at its two biggest ports. Canadian Manufacturers & Exporters president Dennis Darby joins us to talk more about it. 

<p>Business groups are raising concerns about the broad effects of another round of labour disruptions in the transport sector as Canada faces shutdowns at its two biggest ports. Canadian Manufacturers &amp; Exporters president Dennis Darby joins us to talk more about it. </p>

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