Prosecutors seized about $ 30 million in transactions last month over money-laundering fears . It accepts deposits only from top Catholic Church officials and entities , Settimio Caridi testified in U.S. District Court in 2006 . The Vatican says there was a misunderstanding and appealed against the seizure . Comment: It 's `` the most secret bank in the world , '' says a money-laundering expert .
Prosecutors seized about $ 30 million in transactions last month over money-laundering fears . The Vatican says there was a misunderstanding and appealed against the seizure . Comment: It 's `` the most secret bank in the world , '' says a money-laundering expert .