In an exclusive report from Reuters, Symantec's CEO says it is no longer allowing governments to review the source code of its software because of fears the agreements would compromise the security of its products. From the report: Tech companies have been under increasing pressure to allow the Russian government to examine source code, the closely guarded inner workings of software, in exchange for approvals to sell products in Russia. Symantec's decision highlights a growing tension for U.S. technology companies that must weigh their role as protectors of U.S. cybersecurity as they pursue business with some of Washington's adversaries, including Russia and China, according to security experts. While Symantec once allowed the reviews, Clark said that he now sees the security threats as too great. At a time of increased nation-state hacking, Symantec concluded the risk of losing customer confidence by allowing reviews was not worth the business the company could win, he said.