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This May 24, 2012 photo shows some of about 500 miles worth of coated steel pipe manufactured by Welspun Pipes, Inc., originally for the Keystone oil pipeline, stored in Little Rock, Ark. The US is extending indefinitely the amount of time federal agencies have to review the Keystone XL pipeline, likely punting the decision over the controversial oil pipeline until after the midterm elections. (AP Photo/Danny Johnston)
This April 19, 2012 photo shows a truck traveling along highway 14, several miles north of Neligh, Neb. near the proposed new route for the Keystone XL pipeline. The US is extending indefinitely the amount of time federal agencies have to review the Keystone XL pipeline, likely punting the decision over the controversial oil pipeline until after the midterm elections. (AP Photo/Nati Harnik)
In this photo provided by Lou Dematteis, a huge crop art image protesting the proposed Keystone XL pipline covers an 80-acre cornfield outside of Neligh, Neb.. Farmer Art Tanderup, who owns the land, drove the tractor that carved the image into dirt. It was based on a design created by artists John Quigley and Richard Vollaire. (AP Photo/Courtesy of Lou Dematteis)
NEW YORK: The tech industry has brought us self-driving cars, artificial intelligence, disappearing photos and 3-D printers. But when it comes to racial and gender diversity, its companies are no trailblazers.