I think South Africa would be in a lot worse position had you not had visionaries like the Mandelas or the Oliver Tambos or the people there who came together after... both during apartheid and afterwards to create and structure their society.

We are not living in the same world we were immediately after the Cold War, when there seemed to be a greater belief in the universality of human rights and there was enough prosperity to make us question why we had not committed more resources to upholding the values we claimed to hold most dear.

Nigeria is a difficult place. It is not a country for the faint of heart. On a good day, when our larger cities such as Abuja, Lagos, and Kano are filled with the teeming masses going in so many different directions, flogged by the heat and sun, bumping down uneven roads all in the name of 'the hustle,' it can appear chaotic.

Lagos is a fascinatingly infuriating place that its residents love - and love to hate. Licence plates on cars here proudly display the state motto, 'Centre of Excellence,' in what often seems a sarcastic swipe at the place we live in.

In terms of medicine, I've generally been pretty interested in public health issues as they relate to sub-Saharan Africa on a broad scale - HIV/AIDS, malaria etc.