Whoa there!
Pius XII's case for beatification just hit a speed bump, courtesy of his current successor, Pope B16. Pius has been accused of being overly friendly with the Nazi government, having negotiated a concordat with it before becoming pope, and Jewish groups especially have protested his possible beatification. Quite wisely, the current pope is gathering a committee to do further research, according to Reuters.
The Pius XII controversy, however, indicates one of the problems with the current beatification process: Beatification/canonization has become some kind of stamp of approval--for a religious founder, a pope, what have you--instead of a reflection of actual devotion. JPII and Mother Teresa probably have legitimate causes, but Pius XII? Where are the faithful with a devotion to him? But I think some are pushing his beatification as a way to clear his name, which could be a disaster if it is ever discovered that he failed in some spectacular way during a critical time in history.
No matter what, you have to have compassion for the guy that was pope during those terrible years. But making him a saint is probably not the best strategy to show it.