As time has gone on I've been thinking more about the way in which the 200th anniversary of the abolition of the slave trade is being presented.
There has been some argument that the UK government should be apologising for its role in the trade.
For me, I don't think it's the apology itself that's important but what it would symbolise - that this country has come to terms with its past and the source of its wealth.
And it hasn't. Which is why a simple apology isn't the point for me.
You see the focus for the anniversary has all been about the abolition - not the trade itself.
It's been about Wilberforce and the other white men who campaigned for abolition.
Instead of it being an opportunity to take responsibility, it's been used in a self-congratulatory way - 'aren't we all wonderful and liberal to have ended slavery' ...
And did you know this?
Britain did not outlaw slavery until 1833. The transatlantic trade continued under foreign flags for many years.
But the fruits of the trade are still very much in evidence today.
I say again - why is it this country is so comparatively rich?
What is the root of the problems besetting Africa today?
Although there were forms of xenophobia that pre-dated the slave trade, modern day racism is intrinsically linked to the trade.
In order for the appalling treatment of slaves to be justified, it was essential to deprive them of their humanity.
They weren't people.
They were possessions.
So it was ok for law-abiding and often deeply religious people to steal lives, rape and torture and commit unspeakable acts that would be impossible if the slaves were seen as fellow human beings.
That racism - albeit usually a bit more sophisticated (though not always) - is still thriving today.
Have we learned anything?
Judging from what I would argue is a skewed attitude to what this anniversary represents it seems we have not.
And now I'm not only talking about modern-day versions of slavery.
I'm talking about the lessons that still need to be learned from the past.
For the reaction in Ghana to Blair's live message check this out.