Re: Since those chips are already made in China...
No, this is all about delaying a specific consignment of chips destined for a scheduled upgrade to China's (the world's) most powerful computer. Someone lurking within the US gov. bureaucracy appears to have decided that the country needs a propaganda boost and that the best opportunity to achieve this is by sabotaging the Chinese while attempting to grab a moment at the top of the supercomputer tree. Pathetic really.
Shirely EVERYONE can see this!... even the beeb seems to have managed to get the tone about right: http://www.bbc.com/news/technology-32247532