What does Brexit mean for freedom of movement?

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With the Brexit deal becoming law, we look at what it means for Brits wanting to live in Europe and the three million EU citizens currently living in the UK. Today also marks the end of UNAMID, the international peacekeeping mission in Darfur - the mandate runs out after 13 years, so how safe or not is the region now? And with Covid vaccination campaigns now underway across the globe, should those who've had the jab be allowed to return to normal while others are still subject to restrictions?