Google helps Pentagon analyze military drone footage
Ethically, I wonder if this would be any different if Google built a similar software for consumer applications and licensed it similarly to Android being used for surveillance in both the US and far more paranoid governments. 
I would imagine that this allows both Google and the US government to have far more insight and control over the direction of this and possible applications.<p>Not to dismiss the obvious ethical issues of Google having possibly harmful incentives and having their hands tied by the US government financially and legally, but all things considered, I think the main difference here is that Google is already doing this on a massively large scale for the sake of selling ads. It is possible this can help save lives.