Ventilation can involve either 100 percent fresh air in which outside air enters and leaves the cabin in a single pass or a system in which various fractions of air are recirculated from the aircraft cabin and mixed with fresh air.

CNN: Commentary: Flu and your health on a plane

Either way, the court's ruling leaves potential bidders in a quandary.

ECONOMIST: Bitter sweet | The

Summer is peak tourist season, but planning a wine tour in the spring and autumn means avoiding the crowds and observing either the first leaves and shoots or witnessing the harvest, with grapes hanging ripe and heavy on the vine.

BBC: Canada��s wine scene is taking root

This leaves three options for moving it from producers in the heartland to consumers on either side of the country--trains, barges and, most likely of all, trucks.

FORBES: Ethanol: Getting There Is None Of The Fun

This move leaves your opponent exposed and enables you to stay in a position to counter punch with either hand.

BBC: DEFENCE