Cyber attacks from China - but who exactly does it?

Is it the Chinese government or just rogue hackers? Or even rogue hackers from a third country outside China? Western security services are divided on whether the Chinese government is to blame or whether it, too, is a victim of its own citizens' malware. One expert says Belgium also hacks into other country's computers. Pretty well everyone's at it.
And a train driver's dream job. The romance of steam.
Plus, on-line betting on football.