“Does this mean there has to be a separate grand jury in Arizona for anything related to this meeting?”
If that was a crime they are going to prosecute, then yes, in fact, it does mean that.
“The NSA server farm is located at the Utah Data Center in Bluffdale. Think of the possible implications of that!”
Seems to me the implication is that you are grasping for straws to try to justify why a US attorney whose jurisiction is Utah is involved in a case supposedly to prosecute WASHINGTON insiders. Unless you think some techs maintaining servers at a server farm are the “high level targets” that we really need to be rooting out.
Actually, I think Huber’s work involves oversight of a team of lawyers. So I’m not even sure if he’d have to convene a grand jury in Utah or if he would just refer it elsewhere to the appropriate district.