Tax inversions - Mankiw's take

Click here for Mankiw's piece on tax inversions.  My favorite excerpt:

The great 20th-century jurist Learned Hand— who, by the way, has one of the best names in legal history — expressed the principle this way: “Anyone may arrange his affairs so that his taxes shall be as low as possible; he is not bound to choose that pattern which best pays the treasury. There is not even a patriotic duty to increase one’s taxes.”