The daily revelations over classified information finding its way onto Hillary Clinton’s personal email server are raising perplexing questions for former government officials who wonder how classified information made its way onto the former secretary of state’s non-classified server — especially since the two systems are not connected.

“It is hard to move classified documents into the non-classified system. You couldn’t move a document by mistake,” said Willes Lee, a former operations officer for the U.S. Army in Europe and former operations officer for the Joint Chiefs of Staff.

State Department spokesman Alec Gerlach confirmed the two systems don’t connect. “The classified and unclassified system are separate and you cannot email between the two,” Gerlach told Fox News.

Read the article “Mystery Deepens into How Classified Emails Got onto Clinton’s Unclassified Server” on foxnews.com.