Back to the titled theme for this thread. If you think PWC was in trouble with the fiasco at the Academy Awards gala, take a look at what is going on with Caterpillar in the USA and their European counterpart, Caterpillar SARL.
It seems that PWC helped Caterpillar devise a scheme to make it look like they sold parts in Europe from a Swiss branch, the SARL group. However, the IRS has now descended on Cat's plant in Peoria, Illinois with broad-based warrants to investigate an illegal scheme of falsifying the origins of the parts in a way to escape paying taxes on the sales. We are talking about a tax delinquency on the order of 2 billion (yes, with a "B") US dollars.
PWC's involvement in THAT little scheme is going to get them investigated extensively. Obvious, not only can't they get the Oscars right, they have trouble doing taxes legally, too!