"The art of war" usually refers to Sun Tzu's military treatise from the 6th century BC, sometimes refers to Machiavelli's book, a fim starring Wesley Snipes released in 2000, or even a Bone Thugs albubm. The MFA isn't using the recognizable term (and obvious pun) for the exhibition that opened today, they're taking a little different approach to the art they're presenting and the title it has been given: War and Discontent. The new installation......