Firms see $250 million in cost synergies, but their shares drop as market is cautious on the deal.

Fatalities in private-sector construction were up 5%, to 991, last year, highest level since at least 2008.

Two-week extension gives lawmakers more time to negotiate overall fiscal 2018 spending levels.

Specialty-trade contractors gain 22,600 jobs, but heavy-civil sector sheds 7,800.

Canada already is working on challenges to the U.S. tariffs under NAFTA and the WTO.