More than 30,000 visitors from 143 countries are set to stream into Barcelona for the three-day Mobile World Congress trade show, after the 2020 edition was cancelled due to Covid-19. The smaller crowd size will be a far cry from more than 100,000 visitors in pre-pandemic years and a massive virus testing site has been added to exhibition booths. But first, French President Emmanuel Macron rolls out the red carpet to business executives for his "Choose France" investment summit at the Chateau de Versailles.
