The Progressive Catholic Voice has the goods:

It is my expectation that all the priests and deacons in this Archdiocese will support this venture and cooperate with us in the important efforts that lie ahead. The gravity of this struggle, and the radical consequences of inaction propels me to place a solemn charge upon you all — on your ordination day, you made a promise to promote and defend all that the Church teaches. I call upon that promise in this effort to defend marriage. There ought not be open dissension on this issue. If any have personal reservations, I do not wish that they be shared publicly. If anyone believes in conscience that he cannot cooperate, I want him to contact me directly and I will plan to respond personally.

The American Independent has more.