The use of electronic travel authorisations or ETAs is growing worldwide. Dozens of countries have brought them in, or are bringing them in this year, but many passengers are forgetting to complete them - and missing flights. It is costing customers and business big money to re-book. We hear the arguments for and against the new digital border checks and how to navigate the changes. If you'd like to get in touch with the team, our email address is businessdaily@bbc.co.uk Presenter/producer: Rick Kelsey Business Daily is the home of in-depth audio journalism devoted to the world of money and work. From small startup stories to big corporate takeovers, global economic shifts to trends in technology, we look at the key figures, ideas and events shaping business. Each episode is a 17-minute deep dive into a single topic, featuring expert analysis and the people at the heart of the story. Recent episodes explore the weight-loss drug revolution, the growth in AI, the cost of living, why bond markets are so powerful, China's property bubble, and Gen Z's experience of the current job market. We also feature in-depth interviews with company founders and some of the world's most prominent CEOs. These include Google's Sundar Pichai, Wikipedia founder Jimmy Wales, Canva CEO Melanie Perkins, and the CEO of Starbucks, Brian Niccol. (Photo: A cheerful toddler sits on top of a suitcase, enjoying a playful moment with her father at the airport. Credit: Getty Images)