The unlearned lesson of LuxLeaks

Last week it happened again: a giant cache of confidential tax files from Luxembourg was leaked.

Now that even Disney is named among the hundreds of companies that used Luxembourg to create magically low tax bills, the impression of a broken international tax system is becoming clearer and clearer.

But, judging from the political response to the first leak a month ago, we are nowhere near having learned the lesson that should be learned: to fix the tax system we need corporate tr...