hehe, i know it's funny and maybe convenient in a way. But i prefer to be old fashioned about shopping. But that is a small example, there is a group working on a behavioral prediction engine. It can currently predict with 80% accuracy how many cigarettes  one of the subjects will smoke in a day. This is work done by a small unfunded group. Say they got a grant and really got serious with it, just by trolling through you browser history and watching how you respond to stimuli, it'll be able to predict the next 5 pages you will visit, by adding a pseudo-learning engine and a targeted censoring program, it could virtually give someone unimaginable power.  It took me two weeks to write a small prediction engine for my btc-e and cryptsy trading bot, and my skills leave much to be desired. How about a motivation of 3 million for ten really good programmers, they'll be able to tell exactly what size and color your dildo should be, whether you like it ribbed or smooth and what extras to add to make it more attractive.

now apply that machine to look through sensitive information. i'm not a hack prattling on about conspiracies, do a threat assesment on these three
1) governments
2) private sector
3) irresponsible individuals or collectives in the general public,

of the three who can do the most damage?

Say i have a functional botnet that mines data for me and send pertinent info, if i had access to that engine...