Deep Exploration and Filtering of Text (DEFT) - Operating on a 28 million dollar budget, this program utilizes advanced computer algorithms to analyze text-based messages in all shapes and forms, from text messages to reports, with the aim being to comprehend "implied and hidden meanings through probabilistic inference." The full use of DEFT in the United States is classified.

• Nexus 7 - With a classified budget, this particularly murky program studies and tracks social network content. First used in Afghanistan in a defense capacity, when aimed at domestic networks the use of the program is a mystery.

https://www.wired.com/2011/07/darpas-secret-spy-machine/

A second Nexus 7 godfather is Maj. Gen. Michael Flynn. Until recently, Flynn was the head of Ul.S. intelligence in Afghanistan.

But he didn't always think too highly of the apparatus he ran. In report publicly released in December 2009 , Flynn excoriated his fellow intelligence professionals for being "only marginally relevant to the overall strategy."