At a General Motors plant in Janesville, Wisc., on Feb. 13, Barack Obama “turned it down a notch” and gave a major policy address that laid out a broad agenda for reinforcement of the American economy. The plan would restore a measure of economic balance and stability, create infrastructure and renewable-energy jobs, and many other necessary and ambitious undertakings. The speech is substantive and shows Senator Obama’s seriousness and grasp of economic reality and possibility. Optimism and realism together. We’re delighted to see at least one of the three major candidates offering serious solutions to infrastructure and environmental degradation (as John Edwards also did). See excerpts from Obama’s speech below the fold.