A long-awaited Senate report on the CIA’s detention and interrogation program likely won’t be declassified until this summer, the Department of Justice revealed in court documents on Thursday.

The DOJ also raised the issue that the release of the 500-plus-page executive summary of the report could pose a threat to Americans overseas. In the documents, the government stated that the White House will need “sufficient time” to implement “security measures to ensure the safety of U.S. personnel and facilities overseas.”

The new details about the status of the voluminous report by the Senate Select Committee on Intelligence were disclosed in a court filing in a Freedom of Information Act (FOIA) lawsuit filed against the CIA last January. That case is seeking a copy of the so-called Panetta Review, which Intelligence Committee Chairwoman Sen. Dianne Feinstein, D-Calif., and several other lawmakers have characterized as the CIA’s own internal study on its torture program that matches up with the Senate panel’s report. Leon Panetta is a former director of the CIA.

“While the CIA is working expeditiously to complete its declassification review, this review requires coordination with classification experts, subject matter experts, several other agencies, and senior level government officials that will likely be completed this summer, although an exact time cannot now be determined,” the DOJ court filing stated.

“In addition, once the review process is complete, the Administration will have to undertake a number of security steps to protect the safety of U.S. personnel abroad. Thus, several aspects of the declassification review and release are outside of the CIA’s control,” it added.

The “Panetta Review” and the Senate committee’s access to the internal study is currently the subject of separate inquiries by the FBI and DOJ. The CIA alleges that Senate staffers walked out of a secure facility in northern Virginia in possession of the “Panetta Review” documents that they were not authorized to access. Feinstein and Sen. Mark Udall, D-Colo., have accused the CIA of monitoring the computers the agency had set up for Senate investigators to review the classified documents related to the agency’s rendition, detention and interrogation program.