If Florida and California were sovereign states, they might be at the WTO with this: Last week, the Florida Department of Agriculture issued a new regulation requiring all citrus fruit shipped from California to Florida to be inspected, fumigated and certified free of a fungal disease known as Septoria spot.

From a speech in Indonesia: There has been a great deal of media attention based on statements from those who propose restricting imports based on carbon intensity of production methods. This is the wrong action at wrong time. Restricting imports easily leads to covert protectionism, undermining both environment and economic