Secret Service refuses request for documents on Aaron Swartz

From truthout:

The US Secret Service has refused to release its records on Aaron Swartz to Truthout. The agency claimed in a letter, sent to Truthout and a researcher in response to two separate Freedom of Information Act (FOIA) requests, that the release of any documents the agency has on the late Internet activist would interfere with its "enforcement proceedings."
"With regard to your request to have access to your [sic] file, we regret to inform you we cannot comply," states a February 21 letter to Truthout from the Secret Service. "Under provisions of the FOIA, there are no documents or records available to you at this time."
Moreover, "pursuant to 5 U.S.C. 552(B)(7)(A), your file [sic] is being exempted since disclosure could reasonably be expected to interfere with enforcement proceedings. The citation of the above exemption is not to be construed as the only exemption which may be available under the FOIA."