What a neat scam! Bulldoze down what housing the poor people have. Then call in the stupid UN, show the UN idiots all the poor "homeless" people, then pocket all the financial aid the gullible UN comes up with. Darn, wish I'd thought of that.
Ah, but there is a third benefit. The slum dwellers were more often than not supporters of the opposition. Now they have no homes at all, and are much more busy with basic survival than supporting the opposition. Horrible, but welcome to Zimbabwe.