NEW YORK (Reuters) - Speakers at this week's Republican convention make their remarks at a wooden podium that some Jewish groups find offensive because its decorative panels appear to form the shape of a Christian cross. A cross is even more visible in a waist-high gavel stand adjacent to the podium, leading some to question whether the party is trying to send a subtle message to its base among conservative Christians. "It is the very height of insensitivity for the Republican Party to feature a cross at the center of the podium of this convention," Ira Forman, executive director of...