From Uber to Eric Schmidt, tech is closer to the US government than you'd think

Twitter was scrabbling to defend the appointment of a Chinese head with government ties, yet US tech has a busy revolving door with its own government

What's worse for a Silicon Valley executive: ties to the Chinese military or friends in the US Defense Department?

Twitter found itself confronting that question this week after it hired Kathy Chen, a former engineer for the People's Liberation Army (PLA), to head up ad sales and business development in China, Hong Kong and Taiwan. Internet freedom activists and Chinese dissidents, who have to skirt Beijing's digital censors to use Twitter, said it was a betrayal.