There is an excellent article in the print version of The Economist describing the situation in the Congo.
That’s the Congo. Private cellphone networks work and private airlines work because the landlines do not and the bush has eaten the roads. Public servants serve mostly to make life difficult for the public, in the hope of squeezing some cash out of them. Congo is a police state, but without the benefits. The police have unchecked powers, but provide little security. Your correspondent needed three separate permits to visit the railway station in Kinshasa, where he was stopped and questioned six times in 45 minutes. Yet he found that all the seats, windows and light fixtures has been stolen from the trains.
I put this paragraph up for all those people who have not experienced this sort of thing first hand and cannot accept that the single biggest obstacle to ending poverty in Africa is the nature of African nation states. Until that changes, sending aid under all but the most controlled circumstances is more often than not either subsidising the very people who cause the problems in the first place or, at best, flushing 90¢ on the dollar down the toilet in terms of helping the people you really want to benefit from your largess.
The solution? Good question, but it sure as hell is not more of the same. In Africa even more than most other places, truly, the state is not your friend.