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Business + Coffee: Nike and Kaepernick risk, Trump and Canada, self-driving trucking report

Tuesday, September 4: Nike makes Colin Kaepernick the face of the 30th anniversary of its 'Just Do It' campaign; some people threaten to boycott; President Trump tweets that he might just leave Canada out of new NAFTA deal; new report says self-driving tech will have major impact on trucking industry. Yahoo Finance's Dan Roberts reports.