The case for Galileo is put here
http://europa.eu.int/comm/dgs/energy...q/index_en.htm
The only conclusion one can reach from the language used is that the reader is supposed to be completely brainless.
There is not a shred of solid (or logical) substance in it. Just a load of the standard "us Europeans are morally superior to the Americans, so we can't trust them and their military motives" stuff.
It beggars belief that billions of OUR money is being spent by an organisation employing such morons in their marketing dept. Yet, if they really do have a good (presumably covert) reason for it, what could it be?
One suggested use has been wide (Europe-wide) implementation of road tolls, where a vehicle-borne device records the road(s) used at various times, and occassionally uploads the data (using GSM/GPRS) to a central billing agency. Not only are there difficult anti-tampering issues to overcome there but also I am not aware of any such wide-ranging road charging proposal being made; we already have road tax for that...
Galileo will have a more powerful and more receivable signal than present-day Navstar, but the Americans are doing the same thing with theirs.