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Brexit: Why is it so hard to reach a deal?

The UK may have left the EU, but the two sides still haven't agreed the terms of their new relationship.

There are still large areas of disagreement, from fishing to employment rights. Global Trade correspondent Dharshini David explains why a deal is still so hard to reach, and what will happen if they don't agree one before 31 December.

Video produced and edited by Ben King. Camera: Trevor Lloyd.