Alleged agents accused of trying to stop a US citizen from talking to authorities . Miami - based businessman Alejandro Pérez allegedly attempted to enter Argentina with $ 500 . Cash is believed to have been for Cristina Fernandez de Castro election campaign .
Alleged agents accused of trying to stop a U.S. citizen from talking to authorities . Miami-based Guido Alejandro Antonini Wilson tried to enter Argentina with $ 800,000 . Cash is believed to have been for Cristina Fernandez de Kirchner election campaign .