Military organizations us the Dark Web for covert communications, protecting military actions, operations, and adhering to military information security procedures (such as non-disclosure).

It also allows military, governmental, and civilian intelligence, and counter-intelligence units to collect information without revealing themselves to the subjects of their research.

As you now know, the internet was originally designed and launched by DARPA, to ensure continued communication in case of attacks on the US, and to hide the physical location of the communicating objects, Tor was developed, based on this, and further ensures the above.

In an attempt to combat the use of the Dark Web for sex trafficking, DARPA built a search engine called Memex to try to find information and leads from the Dark Web.

It cost DARPA $67,000,000, and is in use by over 33 law enforcement agencies since 2014. It looks for online behavioral signals in ads and helps detect whether a person is being...