Mohammed Haggag, owner of Viking, a company that runs seven balloons in Luxor, said the flight shutdown meant that the whole industry was suffering for one pilot's mistake.

NPR: Fiery Balloon Accident Kills 19 Tourists In Egypt

And the top-flight administrators ruled out a winter shutdown, although chief executive Neil Doncaster accepts it would be of benefit.

BBC: SPL rules out winter break return

Gingrich had the advantage until, during a press conference, he suggested he had forced the shutdown because Clinton had ignored him during a flight from Israel.

CNN: Goodbye again, Newt Gingrich