Then he added, unable to help himself, "?By the way, I think the fence is least effective. But I'll build the goddamned fence if they want it."[Prisoner of Conscience, February 2007]This is McCain in the debate last night:"We Are Not Going To Build Fences And Barriers"
Vanity Fair's reference to McCain as a "Prisoner Of Conscience" refers to his habit of making his own decisions without reference to such considerations as party loyalty, the wishes of his constituents, or the interests of the United States of America. It's all about him and his conscience.