https://arstechnica.com/tech-policy/2019/09/feds-seek-to-seize-all-profits-from-snowdens-book-over-nda-violation/

The US Department of Justice may never be able to prosecute Edward Snowden for his procurement and distribution of highly classified information from the network of the National Security Agency. But DOJ lawyers have found a way to reach out and touch his income—and that of Macmillan Publishers—by filing a civil suit today against them for publication of his book, Permanent Record.

The lawsuit, filed in the US Court for the District of Eastern Virginia, does not seek to stop publication or distribution of Permanent Record. Instead, as a DOJ spokesperson said in a press release, "under well-established Supreme Court precedent [in the case] Snepp v. United States, the government seeks to recover all proceeds earned by Snowden because of his failure to submit his publication for pre-publication review in violation of his alleged contractual and fiduciary obligations."