> with no evidence either way, I am guessing that US intelligence (and others?) are loudly saying this is happening not because they can prove it in silicon but

> with no evidence either way, I am guessing that US intelligence (and others?) are loudly saying this is happening not because they can prove it in silicon but convincing human intelligence has told them My instincts would be that in the absence of real evidence they are 'loudly saying this is happening' to beat the war drums, declare it as proof a 'cyberwar' is happening, are using it to get more funding and preparing for new draconian measures to control it both domestically and internationally.