Out amongst the teeming masses yesterday and today. I don't know what the population is now for Mexico City but there were a lot of people walking the pedestrian mall between the zocalo and the Bellas Artes yesterday. The double long red metro buses were packed to standing room only.  The green street cars looked the same.  Cars are everywhere.  Meanwhile down below, the subways are filled to capacity.  We rode the subway yesterday and today in rush hour.  Maybe it's always rush hour.  The subways are confusing at first but then you learn the lines by color, the stops by symbols and the directions by what's at the end of the line.  Just happy that I'm not taking that to work every day.