“No longer do African regimes have to spend vast sums maintaining land lines and telephone exchanges, exposed to the perils of looting or climate damage. A few mobile-phone beacons, powered by solar batteries, cost a fraction of the old, fixed system. And the cash earned by mobile-phone systems is much easier to control. Gone are the days of relying on a failing mail system to send bills to users of landline systems to chase up payment for calls already made. Top-up cards have to be paid for in advance. Mobile-phone networks are among the most cash-rich and fast-growing businesses in today’s Africa. It is no wonder that the sons, nieces and confidants of Africa’s dictators vie for ownership of mobile-phone companies.”