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If journalism is the first draft of history, what happens if that draft is flawed?
In 1999, four Russian apartment buildings were bombed, hundreds killed,
but even now we still don't know for sure who did it.
It's a mystery that sparked chilling theories.
I'm Helena Merriman and in a new BBC series I'm talking to the reporters who first covered this story.
What did they miss the first time?
The History Bureau, Putin and the apartment bombs.
Listen on BBC.com or wherever you get your podcasts.
You're listening to the explanation from the BBC World Service, recorded on the 21st of January.
I'm BBC diplomatic correspondent Caroline Hawley.
Welcome to a new series of Unspun World,
the programme that goes behind the headlines to find out what's really going on.
On this week's show, we look back at the first year of Donald Trump's second presidency.
President Trump has expanded the powers of the presidency further than any president before him.
And you have to keep in mind that it is difficult once those powers are granted to pull them back.
In Iran,
an uprising against the clerical establishment led to a crackdown described by human rights groups as unprecedented in its severity.
Whenever videos or photos come out of those people who have been killed,
I just hope that I don't see any familiar names.