Listening to the lugubrious & wryly hilarious Stuart Maconie on (shock horror/apologies...) BBC Radio 2 yesterday afternoon, I was vividly reminded of the shots of the US Space Shuttle Challenger exploding (imploding?) not long after lift-off more than 20 years ago. These images have stayed with me to this day. It was probably the first time I - then a rookie foreign correspondent - had watched a disaster of this magnitude unfold in real time.Yet somehow - it is the still image which remains. Discuss......
