Let's be clear on one thing: since the 1970s, the federal grand jury system where the prosecutor reigns supreme, has been an instrument wielded by the secret state to target dissent and to ensnare left-wing government critics in open-ended "investigations" whose sole purpose is to harass if not prosecute alleged "troublemakers." -- Today, with antiwar groups, anarchists, socialists, animal rights and environmental activists clearly focused in the secret state's cross hairs, one can speculate that the DOJ's reticence to reveal what "crime" they were allegedly investigating in all probability related to information surreptitiously obtained by a paid informant or provocateur. --- --- The lesson here? -- When the state comes knocking, the first and best line of defense is to seek competent legal advice from the relevant civil liberties' organization. - Handing over information that the government is not legally entitled to, or indeed, answering questions posed by federal investigators trained in subtle interview techniques without an attorney present can -- and has -- resulted in "obstruction of justice" or a "lying to federal government agents" indictment, a crime under Title 18, United States Code, § 1001. Silence is always an option. A good place to start learning how to fight back against electronic spying practices is a working familiarity with EFF's excellent handbook "Surveillance Self-Defense."