In this in this Nov. 20, 2019, file photo, a quiet Mclean Rail Yard in North Vancouver, British Columbia, is pictured, as Canadian National rail workers strike outside the gates. Canadian National has made its final pitch to regulators for preliminary approval of its $33.6 billion acquisition of Kansas City Southern railroad. Rival Canadian Pacific says the deal could add to rail congestion in Chicago. (JONATHAN HAYWARD/AP)
