麻豆约拍

President Trump's administration has unveiled a tightening of rules for H-1B visas, which allow tens of thousands of high-skilled immigrants to work in the US. The President says this will protect US jobs but Michael Clemens, economist at the Centre for Global Development, says the evidence does not support this. Also in the programme, Emily Means, a reporter with KUER Public Radio in Utah, tells us what to expect at the debate in Salt Lake City between Vice President Pence and VP candidate Kamala Harris. And as global temperatures rise, we take a look at the impact on the workplace. Professor Vidhya Venugopal has been studying the impact of heat on workers in Chennai, India. Nicolas Maitre at the International Labour Organisation has been crunching the numbers on how heatwaves affect worker productivity. And we hear from Dr Jimmy Lee how heat became a massive issue for medical workers dealing with coronavirus. Plus, we'll take a look at a rocky day on the US markets with Susan Schmidt of Aviva Investors in Chicago.

(Picture: A technician working in the US. Picture credit: Getty Images.)