The case of the day is In re Petrobras Securities Litigation (S.D.N.Y. 2016). The action involves investors’ claims of losses due to a bribery and kickback scandal involving Petrobras, a Brazilian oil company. The plaintiffs sought approval from the court to serve a subpoena on Mauro Gentile Rodrigues da Cunha, a former Petrobras independent director. Mr. da Cunha was apparently in Brazil. However, he was born in Philadelphia and was therefore a United States national unless someone could prove by a preponderance that he had lost his US citizenship, and no one tried.