Crocker discusses computer networks, artificial intelligence research, and his work at the Defense Advanced Research Projects Agency (DARPA). Crocker details his interactions with other DARPA personnel including Cordell Green, Barry Wessler, Larry Roberts, Robert Kahn, and David Russell. He discusses his work as a program manager in the Information Processing Techniques Office (IPTO). Crocker describes the effect of the Mansfield amendment, which specified research needed to be relevant to the military, on DARPA projects. He also discusses software development.