Questione giuridica chiave
Whether the appeal against the Federal Office of Justice's opposition decision was admissible and the appellant had standing.
Decisione estratta
The appeal was admissible and the account holder had standing as the person affected by the bank-seizure measure.
Motivazione estratta
The Swiss-US treaty and implementing statutes allow administrative-law appeal against the decision. Standing was uncontested for the holder of the account targeted by the assistance measure.