Sunday, December 11, 2011  Question about Airlines  Mark Thoma
tweets:  MarkThoma Mark Thoma      1. Probably because it
doesn't fly up in the sky.    2. Flying does add complications
but the bus routes are not without issues (accidents, traffic
jams, bad weather) that can create reliability issues. I just
know that it is rare and notable for an airtrip not to have
issues.