Kate WhannelPolitical reporterDigital ID will be mandatory in order to work in the UK, as part of plans to tackle illegal migration.Sir Keir Starmer said the new digital ID scheme would make it tougher to work in the UK illegally and offer "countless benefits" to citizens.However, opposition parties argued the proposals would not stop people crossing the Channel in small boats.The prime minister set out his plans in a broader speech to a gathering of world leaders, in which he said it had been "...