It appears the volcano in Iceland is not going to go back to sleep without causing mankind to take notice of the disruption possible. Thousands of flights have been canceled by the the ash cloud ejected from the eruption under a glacier. The ash is even more destructive to air traffic because some of it may be turned to glass by the ice before being ejected high into the air.We’ll just have to wait and see if this will last for weeks and cause major economic disruption in North Atlantic and European transportation, or fade away quietly. I wouldn’t bet on either.