You may want to contact the Stimpson Center for International Peace on the subject, they're doing a study on genocide prevention you may be interested in. Ms. Victoria Holt is leading it, she gave an interesting interview session here at Leavenworth about two months ago. Several high-profile individuals are participating.

One of her points in discussion with me was that the UN has really cleaned up its peacekeeping act the last few years organizationally. The problem is overcoming the negative perceptions from the failed 1990's interventions.