If they're requiring backdoors on technology imported into the country (source: http://www.theregister.co.uk/2015/03/05/obama_criticises_chi... ), why wouldn't they require them on their own technology that they build themselves? It doesn't make sense from a purely logical standpoint. Of course they're not going to come out and admit it, but we're also starting to see evidence of it:
Example 1: http://www.zdnet.com/article/former-pentagon-analyst-china-h...
Example 2: http://www.geek.com/chips/spy-agencies-shun-lenovo-finding-b...
Example 3: http://www.computerworld.com/article/2860742/chinese-android...
Is it really so hard to believe? Especially when the indirect evidence and logic is so overwhelming? I'm no tin-foil hat wearing conspiracy nut, but come on here... It's China.