Bishop Marc Andrus of California has a great video on his blog of bishops and ecumenical participants explaining why they were participating in, or why they thought is was important to participate in the march last week supporting the Millennium Development Goals.
The video includes my former bishop, Wayne Wright of Delaware, and the bishop of Delaware's companion diocese Argyll and the Isles, Martin Smith. I got to meet Martin at my former congregation when at the end of a very long day he celebrated Eucharist for our campus ministry group. At the time of the sermon, he sat on the floor in front of the altar where we were all gathered and invited us into a conversation about the day's reading. I don't remember the conversation, but I do remember how down to earth - literally - the bishop was and how open to dialogue! In this video he says that the march is going to help him re-examine his own lifestyle. It is a humble answer and a good place for us all to start.
080727_MDG_March_final from http://bishopmarc.vox.com/