They should also take a look at this and its (hard to link) Eurostat source. Which two French relations were among the top four busiest intra-EU air routes in 2008 (far above anything else in France)? Paris/Orly to Toulouse resp. Nice. Incidentally (not), the two major cities with the weakest TGV connections. (In fact, from the data I could find at Eurostat, in 2009 and 2010, the two French relations were the second and third busiest EU air routes, behind Madrid-Barcelona at a reduced level, while Milan Linate to Rome Fiumicino dropped out of the race due to the Milan-Bologna high-speed line.)

_{*Lunatic*, n.
One whose delusions are out of fashion.}