Airports group BAA saw a small pick up in May after handling 10.7m passengers during the month, a 0.8% increase on the same month last year. There were also signs that the long-term decline in cargo tonnage has bottomed out. Among key markets in May, domestic traffic rose 9.8%, Irish traffic climbed 7.2% and European scheduled traffic added 0.9%. But North Atlantic traffic fell 4.6% while other long...