 Business groups have filed lawsuits to block the rule. Those legal challenges are still pending. Andrea Hsu, NPR News. Canada's second largest airline has reached a deal with striking mechanics, ending a labor dispute that disrupted travel plans of tens of thousands of people over the long Canada Day holiday weekend. WestJet has said while there will be some disruptions this week, we'll be bringing planes back into service. On Wall Street, the Dow is up 50 points. You're listening to NPR.