I'm happy to see more light shed on the exploitation of Africa (read:Barrick / Coltan etc...) 

However, to bring up white Christian's colonization and slavery and to throw the Portuguese in there without mentioning some of the other key whitefolk, AND, to not mention the centuries long Muslim slavetraders aspect in Africa, is once again tarring one religion and culture while whitewashing another.

White Christians are not the only peoples who have to answer for stuff....