Irrelevant. The purchaser of the company inherits the decisions of the previous company. If you buy an auto repair shop to tear down and build a strip mall, and it turns out that they've been polluting the ground for the last 30 years by dumping their petroleum into the soil in the basement, guess whose problem it is? M&I made a contribution. They got bought, but they still exist as M&I. BMO kept the name because they like the brand recognition. Well, brand recognition has some risks as well - these guys call for a boycott of M&I, and I will never ever ever ever buy a Chevrolet, even if GM is purchased by Toyota.