Washington (CNN) The chairman of the Senate Judiciary Committee released a scathing statement Friday, calling on Hillary Clinton to "come clean" after the State Department released an email in which she asked an aide to send information on a non-secure system after attempts to send the document securely failed.

Sen. Chuck Grassley said the email, released at about 1:30 am Friday morning along with about 3,000 other emails from Clinton's State Department tenure, is "disturbing," and "appears to show the former Secretary of State instructing a subordinate to remove the headings from a classified document and send it to her in an unsecure manner."

On June 16, 2011, top Clinton aide Jake Sullivan wrote to Clinton to say she would get "tps" -- presumably short for "talking points" that evening. The subject of the email is redacted so it's not clear what topic these points covered.

The next morning, Clinton wrote back to say she hadn't received them yet, and after a few minutes Sullivan responded that staff were having issues sending the document in a secure fax but that they were "working on it."

"If they can't," Clinton replies, "turn into nonpaper w no identifying heading and send nonsecure."

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