Facebook ‘troll farms’ play outsized role in Madagascar’s politics

In Madagascar, some of the country’s highest authorities are accused of bankrolling teams to create fake profiles on Facebook which then share biased or false information for political gain. These fake Facebook accounts stir up controversy, sing the praises of President Andry Rajoelina and criticise journalists and opposition politicians. The communications minister, accused of playing a key role, denies any wrongdoing. Our correspondents report.