SUN VALLEY, ID - JULY 8: (L to R) Ben Silbermann, chief executive officer of Pinterest, and Tim Cook, chief executive officer of Apple, Inc., attend the annual Allen & Company Sun Valley Conference, July 8, 2016 in Sun Valley, Idaho. Every July, some of the world's most wealthy and powerful businesspeople from the media, finance, technology and political spheres converge at the Sun Valley Resort for the exclusive weeklong conference. (Photo by Drew Angerer/Getty Images)

SUN VALLEY, ID - JULY 8: Robert 'Rob' Richer, chief executive officer of Uptima Group and former associate deputy director of operations of the Central Intelligence Agency, and his wife Kim Richer attend the annual Allen & Company Sun Valley Conference, July 8, 2016 in Sun Valley, Idaho. Every July, some of the world's most wealthy and powerful businesspeople from the media, finance, technology and political spheres converge at the Sun Valley Resort for the exclusive weeklong conference. (Photo by Drew Angerer/Getty Images)

SUN VALLEY, ID - JULY 8: Canadian businessman Andre Desmarais attends the annual Allen & Company Sun Valley Conference, July 8, 2016 in Sun Valley, Idaho. Every July, some of the world's most wealthy and powerful businesspeople from the media, finance, technology and political spheres converge at the Sun Valley Resort for the exclusive weeklong conference. (Photo by Drew Angerer/Getty Images)

(FILES) This file photo taken on October 21, 2015 shows Theranos chief executive Elizabeth Holmes speaking at a Wall Street Journal technology conference in Laguna Beach, California. US regulators have banned Holmes, founder and chief executive of Theranos, from operating laboratories for at least two years, the troubled blood-testing company said late July 7, 2016. Theranos said that the Centers for Medicare & Medicaid Services (CMS) had imposed sanctions on the company after finding problems at its Newark lab in northern California. / AFP PHOTO / GLENN CHAPMANGLENN CHAPMAN/AFP/Getty Images

NANJING, CHINA - JULY 07: A road lined with plane trees seems to be a fantasy forest as the trees reflect in ponding after rainstorm at Nanjing University of Science and Technology on July 7, 2016 in Nanjing, Jiangsu Province of China. Continuous torrential rain has flooded many parts of southern China. (Photo by VCG/VCG via Getty Images)

(FILES) This file photo taken on June 27, 2014 shows a journalist taking a picture with her smartphone of a computer-generated image during a presentation of the Belgrade Waterfront project in Belgrade. Authorities say the $3 billion (2.71-billion-euro) project, led by Abu Dhabi-based developer Eagle Hills, will generate thousands of jobs and much-needed investment, as well as revamping rundown parts of the banks of the River Danube for public use. The grand plans include the Western Balkans' biggest shopping mall, a 200-metre-tall (656-feet) Dubai-style tower, high-end hotels, office blocks and luxury apartments. / AFP PHOTO / ANDREJ ISAKOVICANDREJ ISAKOVIC/AFP/Getty Images

NANJING, CHINA - JULY 07: A road lined with plane trees seems to be a fantasy forest as the trees reflect in ponding after rainstorm at Nanjing University of Science and Technology on July 7, 2016 in Nanjing, Jiangsu Province of China. Continuous torrential rain has flooded many parts of southern China. (Photo by VCG/VCG via Getty Images)

SUN VALLEY, ID - JULY 7: (L to R) Michael Ovitz, businessman and co-founder of Creative Arts Agency, and Roger Goodell, commissioner of the National Football League (NFL), attend the annual Allen & Company Sun Valley Conference, July 7, 2016 in Sun Valley, Idaho. Every July, some of the world's most wealthy and powerful businesspeople from the media, finance, technology and political spheres converge at the Sun Valley Resort for the exclusive weeklong conference. (Photo by Drew Angerer/Getty Images)