It was recently reported that light was brought to a full halt:
http://www.nytimes.com/2001/01/18/science/18LIGH.html
The follow up musing of my Dad's is hilarious:
Yes. Can you imagine trying to sell that project to the people providing the funding:
Scientist: "Give me X-million dollars and I will stop light"
Money Guy: "Fuck You. The California Legislature did it for free."