Real-time surveillance of the world. Who said what when where to whom. Was that a threat. What were the consequences. Feeds for video, sound, https streams from billions of Internet devices. ML to extract salient features, at multiple levels of resolution. $10B is a drop in the bucket. This is heading into trillions territory. I wouldn't be surprised that in 10 years half the Pentagon budget will be spent on the cloud.
We can glimpse a world-wide stack-ranking system: "Echelon [0], who are the 1000 individuals most threatening to our strategic position and what will be their whereabouts today?". "Matrix [1], please dispose of these individuals at these locations". Let's pray there will still be some humans between step 0 and step 1. Worse, by the logic of MAD, it is possible we are going to end up with 2 such systems, one for USA and one for China, caught in a new cold war. Think distributed Vietnam.