On 3rd October, the UK Government announced an agreement to cede sovereignty of the British Indian Ocean Territory (BIOT) – otherwise known as the Chagos archipelago – to Mauritius. This decision has aroused considerable debate from across the political spectrum, and beyond British shores. So, in this week’s Big Ask, we asked seven experts: Should the United Kingdom (UK) relinquish sovereignty over the British Indian Ocean Territory (BIOT)? Britain’s World.