A white paper, podcast and podcast transcript on insider threats promotes essentially four threat responses: behavioral analysis, integrated security components, automatic response and iterative modeling. All four are technical responses to an essentially human problem. And guess what, the paper is from IBM.
I'm not arguing that expensive technical responses are totally worthless but rather that they need to be supplemented by cheap humanistic responses - policies, procedures, management oversight, awareness/training/education, compliance activities and so forth. I'm sure IBM Consulting would love to sell you those as well.