There are speeches yet to go at the Republican Convention, as I write this. President Bush will speak tonight, and of course the most important speech given at any party convention is the one by its nominee. Still, without fear of being proven wrong, in my opinion the most powerful and evocative speech at this Convention was given yesterday. By a Democrat, Senator Zell Miller. The title which summarizes his work is just one letter different from the catch phrase made famous in the Oscar-winning performance of Peter Finch in the 1976 classic, Network. Finch played Howard Beale, the TV...