There are important links in the post, especially one to a PDF of a scholarly paper by Phillip Cantrell (2007) on the link between PEAR and the Rwandan Patriotic Front (RPF). Among Cantrell's troubling points is PEAR's complicity in the RPF-concocted narrative that Tutsis and Hutus are simply constructs of the colonial past (i.e., "we're all Rwandans now").
A Rwandan blogger responded to Joel's post, corroborating the existence of the PEAR/RPF connection. I looked at his blog and found this unsettling piece. Again, worthy of careful consideration.