大象传媒

Hillary Clinton and Donald Trump faced each other in the last debate before the presidential election with both claiming their policies will boost the world's biggest economy. We analyse their strategies with the help of US economist Irwin Stelzer and from Arizona we hear how the region's construction industry is struggling to find enough skilled workers and create new jobs.

The global mining giant BHP Billiton faced protests today at its shareholders meeting in London, as campaigners from Brazil highlighted calls for compensation for more victims of the collapse of a dam, at the Samarco mining operation. BHP and its partner in the operation, Vale, are under pressure to increase compensation, after 19 people died and rivers were polluted when the dam collapsed. We get the latest from our reporter who was at the mining company's meeting.

Tanzania has confirmed impounding several ships from North Korea, which were flying the East African country's flag without permission. North Korea is subject to sanctions by the United Nations over its nuclear weapons and missiles programmes. The measures are aimed at cutting off the Asian country's ability to trade with much of the world, but if North Korean ships can simply just raise another flag then those international sanctions may be ineffective. Marc Levinson, an expert on international shipping, and the author of a book called "The Box", tells us if it is easy for a vessel to masquerade as a ship from another country.

The renowned scientist Professor Stephen Hawking has claimed artificial intelligence will either transform our society, or destroy it. Billions of dollars are being spent on the development of machines and software designed to be as smart as humans. We already have examples of artificial intelligence in the shape of the digital personal assistants Siri and Cortana, developed by Apple and Microsoft. However the future is fraught with dilemmas, for example how would we feel about a robot taking care of an elderly relative? Professor Hawking was speaking at the launch of a new think tank, the Centre for the Future of Intelligence, at Cambridge University and the 大象传媒's technology correspondent, Rory Cellan-Jones was there to monitor the debate about the merits of AI.