MANILA — The Sandiganbayan has summoned former Public Works Secretary Manuel Bonoan to testify Wednesday, August 12, in the ₱92.8-million malversation case against former Senator Ramon “Bong” Revilla Jr. over an alleged ghost flood control project in Pandi, Bulacan. The Sandiganbayan Third Division issued the subpoena on August 7 following a request from the prosecution…