Original sentence: Probably the FBI, as all data and study results of the National Traffic Safety Board are now in possession of the FBI.Those tapes are now presumed to be in the hands of federal law-enforcement officials, who arrived at the flight-contol facility minutes after Flight 11 crashed into the World Trade Center
Edited sentence: Those tapes are now presumed to be in the hands of Federal law enforcement officials, who arrived at the flight control facility minutes after Flight 11 crashed into the World Trade Center; all data and study results of the National Transportation Safety Board (NTSB) are now in possession of the FBI