The kernel OS is nothing more than our well known FreeBSD, with linux binary compatibility .
Second, Secure OSs are not something new, if we remember that SE-Linux was also funded by NSA.
Third, a Chinese OS shouldn't be US's main concern on Cyber Warfare...
Guys cyberwar is about preventing the other guy from communicating, not so much about finding out what he knows. Intelligence gathering is important before the battle.

So China has yet another flavor of Linux. Big deal.