Investors in the latest round include Andreessen Horowitz, Sequoia Capital, Fidelity Management & Research, Valor Equity Partners, Vy Capital, Saudi Prince Alwaleed Bin Talal and Kingdom Holding.
More than 2.9 million travelers were screened at U.S. airports on Friday, surpassing a previous record set last year on the Sunday after Thanksgiving, according to the transportation security agency.