Many bring digital video cameras so they can mix in live shots of the crowd or the stage.
The noon report is already in progress, and the first image we see is a live shot of our former offices.
A live shot, the crawler on the bottom of the screen said.
The live shots show the main body of protesters is about 25 people deep.
A television screen had been set up, displaying live shots from the proceedings within the court.
But it was a live shot of the second tower coming down.
Of course, with hindsight we now know that our live shot showed the building still standing in the background.
It has been used with increasing effect for live shots.
There are also unpublished live shots from all over the world.
"They objected to the tone during my live shot," she said.