This article was pretty poorly written, leading to a couple of questions:
1) It seems to me that the scientists could have simply stored the energy from the light for a period of time? Which would not actually be "stopping" the light.
2) I understand a super position and quantum physics, but I still have vague idea of what happened in the experiment. If I actually understand the terminology and have done various experiments, research, etc. but still don't fully understand, how would the standard reader (without further explanation) understand the article?