Vultures this way
Don't know anything about Compuware, but Singer and co (aka: the Vulture Funds) have been having a great time around the world trying to get money 'owed' to them by Argentina - including having an Argentinian naval ship impunded in Ghana of all places..! (Lot's more details here: http://ftalphaville.ft.com/tag/pari-passu-saga).