Wracked by the need to boost its supplies of natural gas, Argentina is putting the screws to producers and certain consumers. Last week, Argentine President Nestor Kirchner justified his government’s moves.In fact, Kirchner used the word “crisis” to describe the shortages that have forced his government to ration gas for factories in order to guarantee enough energy to heat homes.The government, which is also forcing factories to switch from gas to more-expensive diesel or fuel oil, says it has taken steps to boost capacity-a much needed decision in a land where oil refining is said to be running at 95% of capacity.Election loomsKirchner’s cabinet chief, Alberto Fe...