alt Hacker News> I can't think of a lot of crimes whose metadata warrants being killed for personally
You're (literally) missing links then. If A is a high-value target that we look at closely (because they're a high-value target), what if B frequently contacts A? If C, D, and E always recieve messages from B immediately following A messaging B?
What about times? Is B messaging F at a consistant time, and never outside of that? Is A only messaging G, at a set time, with G's phone immediately being put into (ineffective) airplane mode immediately before and after?
Facebook built their business on the social graph, but the CIA's been at this for decades
Thanks for explaining. I guess we are talking about espionage or something like that. I've been so focused on the rise of domestic surveillance lately that I forgot about the noncitizen aspects. Which is ridiculous but at the same time, it does seem like a trillion dollar focus lately.