This BBC podcast is supported by ads outside the UK.
I'm Nicola Coughlan and for BBC Radio 4, this is History's Youngest Heroes.
Rebellion, risk and the radical power of youth.
She thought, right, I'll just do it.
She thought about others rather than herself.
Twelve stories of extraordinary young people from across history.
There's a real sense of urgency in them.
That resistance has to be mounted.
It has to be mounted now.
Follow History's Youngest Heroes wherever you get your podcasts.
Hello and welcome to NewsHour from the BBC World Service.
Coming to you live from London with me, Sean Lay.
The collision between a civilian plane and a U.S.
army helicopter in the sky over Washington, D.C.
on Wednesday night resulted in 67 people dying in the sub zero temperatures of the Potomac River.
At a White House news conference Thursday lunchtime,
the US President Donald Trump led reporters in a moment of silence for the dead
and then reflected the shock many in the United States are feeling.
This was a dark and excruciating night in our nation's capital
and in our nation's history and a tragedy of terrible proportions.