Platte River Networks, the Denver-based cybersecurity firm Hillary Clinton hired in 2013 to maintain her old email server, says it is “highly likely” a full backup of the device was made and that the thousands of emails Clinton deleted may still exist, ABC News is reporting.On Wednesday, Platte River gave the FBI the server Clinton used as secretary of state. The Democratic presidential candidate had stated numerous times prior to that that she would not relinquish control of the server to a third party.But the FBI became interested in the hardware after the revelation that the Intelligent Community inspector general...