This project was done by Miki Seifert and William Franco.
The idea was the combination of the coming famine in Afghanistan with the day of the dead celebration that this was created for.
They went around LA projecting on walls. They report success at LACMA and in Westwood. I saw it in North Hollywood, but there were not enough people there, and it was ignored.
It was a "way homer" for me. It really only made sense after I got in the car and drove off, but it was a good head trip for a couple days.
You can see more information on their project at http://home.earthlink.net/~spgekko/altar/