内容摘要：He highlighted his efforts to tackle illegal immigration, to bring back jobs to the US and end what he called "the inflation nightmare".

He highlighted his efforts to tackle illegal immigration, to bring back jobs to the US and end what he called "the inflation nightmare".

He said they were raped by adult miners who promised to give them some of the gold they found in exchange for sex."If that kid is desperate for money, he will take the risk."

Jonathan describes how the children would approach teams of miners for protection but "that team would have conditions".Sex was also used as punishment if the teenagers failed to complete a task for their team.Jonathan says the children in the mine where he worked were all foreign and did not realise what they were getting themselves into.

Mining researcher and activist Makhotla Sefuli backs this up.He says criminal gangs specifically target children to work in illegal mines across South Africa.

Many of them are abducted from neighbouring countries and trafficked. They are enticed by baseless promises of finding them employment in the formal mining industry.

"Their passports are confiscated when they get to South Africa… It is common knowledge that these young boys are being abused," Mr Sefuli says.Data on the number of deaths in air accidents globally also shows that there has been a decrease over the same period, albeit with spikes in some years reflecting major air disasters.

In 2014, two such events contributed to a significant spike.In March, Malaysian Airlines flight MH370 disappeared as it travelled from Kuala Lumpur to Beijing with 239 people on board. In July, another Malaysian Airlines plane, MH17, was shot down by a Russian-made missile over eastern Ukraine, killing almost 300.

Data sets such as this are inclined to see sudden, large fluctuations, Prof Sir David Spiegelhalter, Emeritus Professor of Statistics at the University of Cambridge, told BBC Verify."If you count fatalities rather than accidents it's bound to be extremely volatile and sensitive to a single large accident," he said.