The prosecutors have to convince a grand jury to issue an indictment. That's what the initial investigation is about. They may not have the duty to disclose, h

The prosecutors have to convince a grand jury to issue an indictment. That's what the initial investigation is about. They may not have the duty to disclose, however, the warrant/subpoena has to be specific, and what IS scary is the idea that those served can be put under a gag order not to talk about it. For big RICO cases it made sense, but for smaller ones that's an abuse.