A retired Army intelligence officer from Utah accused of being a spy for China and selling classified national defense information pleaded not guilty in federal court Friday. Because of the classified documents the government will rely on to prosecute Ron Rockwell Hansen, of Syracuse, authorities will use a secure room — sensitive compartmented information facility, or SCIF — in the courthouse to store the evidence. Prosecutors, attorneys and other court workers must be granted top-secret clearance to access the information. U.S. Magistrate Judge Paul Warner imposed an order to prevent the sharing of documents outside the case. The court also appointed a classified information security officer. The government gave Rockwell's lawyers CDs containing 32,000 pages of unclassified documents Friday, which prosecutor Robert Lund said amounts to less than 10 percent of the evidence. Federal agents arrested Hansen last month as he was preparing to board a flight from Seattle to China. His arrest came after a four-year FBI investigation, 14 search warrants, dozens of subpoenas and witness interviews, and "techniques that we can't discuss in open court," Lund said. Retired Army officer from Utah accused of spying for China pleads not guilty This is going to be interesting.