By ELEANOR BLACK
A grainy green image of goodness-knows-what provided the best picture of what was happening in Afghanistan this week.
As America continued its military strike, nightscope film of what was reported to be bombs falling on an undisclosed location - but which looked more like an emerald snowstorm - popped up on television screens at frequent intervals.
So did a series of experts who did their best to interpret the fuzzy pictures.
For CNN, the news network that made its name with saturation coverage of the Gulf War, it was a bit of a comedown. It borrowed the film from Arab television station Al Jazeera, having not yet managed to get close enough to the action to shoot its own.