I would add political to the number of topics that are difficult to discuss. Sitting in Africa, the issue of colonialism is one such topic. That colonialism was

I would add political to the number of topics that are difficult to discuss. Sitting in Africa, the issue of colonialism is one such topic. That colonialism was bad is something we all agree on. Trouble comes on how much blame of our current problems are due to colonialism or due to current corruption. It is such an emotive topic that typically pits the all our problems are due to colonialism against the all our problems are due to corrupt politicians. Good luck convincing either side that the answer lies somewhere in the middle.