Sir Lenny Henry has called for the UK government to pay £18tn in slavery reparations for its role in the transatlantic slave trade, and argued that every black Briton also deserves compensation. The comedian, co-author of a new book titled The Big Payback, says the payments would help repair damage caused in parts of the Americas, especially the Caribbean, and argues slavery has contributed to modern day racism and poorer outcomes for black people in the UK. Opponents have argued it's unfair to hold modern Britons responsible for past wrongs and called the £18tn figure absurd and divisive - we find out where that figure came from, and what calculations went into it. Many in this debate point out that, although Britain profited from slavery, it also abolished it - we look at the reasons behind that shift and what it meant for slaves and slave owners. Plus, reparations used to be all about wars - how else have they been applied throughout history?

Presenter: Adam Fleming