For your consideration. On the left, the path of Hurricane Katrina in 2005. On the right, the path of Hurricane Isaac today. These maps were recorded precisely seven years apart, to the hour, lending an eerie ambiance to the South’s current attempts to batten down the hatches. At this point, Isaac doesn’t look to be on Katrina’s level, with winds expected to top out around 90 miles per hour instead of Katrina’s 157. Still, if nothing else, nature has already sent us its surest sign that this could be a rough one: CNN has sent noted hurricane expert Anderson Cooper to cover the storm …