What’s the fastest-changing landscape in the USA? You might be forgiven for thinking the answer is politics, but it’s actually radio. In a country renowned for the moving image, whether it be film or television, it may be somewhat surprising to learn that radio is at the forefront of broadcasting across the US. Radio listenership, both terrestrial and digital, has been rising steadily over the past two years, according to 2017 Nielsen figures, with news and talk radio leading what peopl