Dementia special to mark World Alzheimer's Day.
The BBC news programme where you set the agenda.
Prominent international thinkers debating big ideas.
Defence Expert Dr. P W Singer; Economist George Ayittey; Renaissance scholar Lisa Jardine.
Poverty as a spiritual practice. Is it beneficial to self and society?
The relationship between the western correspondent and the local fixer.
KENYA SPECIAL: New broadband cables, animation industry, technology in Nairobi's slums