There’s been for the past 50 years or so a cottage industry built around
attacking Pope Pius XII for alleged  sins of omission with regard to the
Nazi death camps during WWII.  But Jewish Prime Minister Golda Meier, Albert Einstein, the American Jewish Committee and the World Jewish Congress had all praised the good Pope for his extraordinary efforts in helping the Jews.  What gives? In “Church of Spies:The Pope’s Secret War Against Hitler,” author Mark Riebling meticulously documents the good work of Pius XII in defending, hiding and protecting the Jews to the extent possible. It is high time to get this history back on track and we are indebted to Mr.Riebling for the great contribution toward this end that his book provides.

http://www.catholicworldreport.com/Item/4321/a_black_legend_refuted.aspx