He was well ahead of us and walking slowly, hands clasped behind his back, a smallish figure turning now to enter a residential street and fade from view.

NEWYORKER: Midnight in Dostoevsky

Local officials in Rwanda now have mobile phones loaded with software that allows them to enter and transmit health data back to their base so they can access information on potential outbreaks, shortages of medicines and so on in real time.

ECONOMIST: A doctor in your pocket