About 3,200 workers at Canadian National Railway Co. went on strike Nov. 19, threatening to crimp shipments of oil, potash and grain across the country.

Canadian National Railway Co. faces disruption as more than 3,000 workers at the country’s largest railroad threaten to strike just after midnight over safety issues and health benefits.

UPS Inc. has expanded its revenue-generating drone flights beyond hospital campuses, delivering prescription medicines to two customers’ homes from a CVS Health Corp. pharmacy in Cary, N.C.