From the BBC World Service: President Donald Trump's tariffs are now in effect, ranging from 10% to as high as 50%. We'll hear from reporters and analysts on the ground in Singapore, Delhi, and Zambia to check the mood among business owners. Plus, how far do you travel to pick up your groceries? For people living in the rural Australian settlement of Burringurrah, going shopping used to mean a 500-mile round trip, but that's changed after a new shop opened.