The US has a few things to gain from this story: Economically, because Chinese products are perceived as compromised. Politically: because the Chinese governmen

The US has a few things to gain from this story: Economically, because Chinese products are perceived as compromised. Politically: because the Chinese government is seen in the offense. The US has something to loose too: Being perceived as dependent on Chinese manufacturing and potentially compromised down to military hardware. (The first everybody knows, the second would be devastating for trust.) All in all it would be a weird angle for a false-flag attack.