Construction and engineering

In this Tuesday, Sept. 3, 2019 photo a sign rests in front of a newly constructed home, in Westwood, Mass. On Wednesday, Sept. 18, the Commerce Department reports on U.S. home construction in August. (AP Photo/Steven Senne)

Luxembourg's Prime Minister Xavier Bettel, right, addresses a media conference next to an empty lectern intended for British Prime Minister Boris Johnson after a meeting at the prime ministers office in Luxembourg, Monday, Sept. 16, 2019. (AP Photo/Olivier Matthys)

Government contractors erect a section of Pentagon-funded border wall along the Colorado River, Tuesday, Sept. 10, 2019 in Yuma, Ariz. The 30-foot high wall replaces a five-mile section of Normandy barrier and post-n-beam fencing, shown at left, along the the International border that separates Mexico and the United States. Construction began as federal officials revealed a list of Defense Department projects to be cut to pay for President Donald Trump's wall. (AP Photo/Matt York)

Government contractors erect a section of Pentagon-funded border wall along the Colorado River, Tuesday, Sept. 10, 2019 in Yuma, Ariz. The 30-foot high wall replaces a five-mile section of Normandy barrier and post-n-beam fencing, shown at left, along the the International border that separates Mexico and the United States. Construction began as federal officials revealed a list of Defense Department projects to be cut to pay for President Donald Trump's wall. (AP Photo/Matt York)

Stuff animals, story books and small chairs fill the Juvenile waiting area at the Migrant Protection Protocols Immigration Hearing Facilities in Laredo, Tuesday, September 10, 2019. The facility is schedule to open for hearings for immigrants seeking asylum on Monday, September 16, 2019. (Ricardo Santos/The Laredo Morning Times via AP)

Stuff animals, story books and small chairs fill the Juvenile waiting area at the Migrant Protection Protocols Immigration Hearing Facilities in Laredo, Tuesday, September 10, 2019. The facility is schedule to open for hearings for immigrants seeking asylum on Monday, September 16, 2019. (Ricardo Santos/The Laredo Morning Times via AP)

Government contractors erect a section of Pentagon-funded border wall along the Colorado River, Tuesday, Sept. 10, 2019 in Yuma, Ariz. The 30-foot high wall replaces a five-mile section of Normandy barrier and post-n-beam fencing, shown at left, along the the International border that separates Mexico and the United States. Construction began as federal officials revealed a list of Defense Department projects to be cut to pay for President Donald Trump's wall. (AP Photo/Matt York)

This June 20, 2017, photo provided by Chris Wonderly shows Hovenweep Castle at Hovenweep National Monument on the Colorado-Utah border. The U.S. government will allow oil and gas companies to make lease bids Monday on lands considered archaeologically sensitive near a national monument stretching across the Utah-Colorado border that houses sacred tribal sites. Included in the Bureau of Land Management’s September oil and gas lease sale is about 47 square miles (122 square kilometers) of land north of Hovenweep National Monument, a group of prehistoric villages overlooking a canyon with connections to several indigenous tribes throughout the U.S. Southwest. (Chris Wonderly/National Park Service, via AP)

This June 20, 2017, photo provided by Chris Wonderly shows Hovenweep Castle at Hovenweep National Monument on the Colorado-Utah border. The U.S. government will allow oil and gas companies to make lease bids Monday on lands considered archaeologically sensitive near a national monument stretching across the Utah-Colorado border that houses sacred tribal sites. Included in the Bureau of Land Management’s September oil and gas lease sale is about 47 square miles (122 square kilometers) of land north of Hovenweep National Monument, a group of prehistoric villages overlooking a canyon with connections to several indigenous tribes throughout the U.S. Southwest. (Chris Wonderly/National Park Service, via AP)

A boat sits grounded in the aftermath of Hurricane Dorian, in Marsh Harbor, Abaco Island, Bahamas, Friday, Sept. 6, 2019. The Bahamian health ministry said helicopters and boats are on the way to help people in affected areas, though officials warned of delays because of severe flooding and limited access. (AP Photo/Gonzalo Gaudenzi)