[Boogieman]

That language only concerns the rule about a criminal trial being held in the "division of the district" where the crime was committed (which was superceded by a later amendment anyway, now the trial can be held anywhere in the district).

Check out the Handbook for Federal Grand Jurors, and what it has to say about the jurisdiction a Federal Grand Jury:

"District: The geographical area over which the federal district court where the grand jury sits and the grand jury itself have jurisdiction. The territorial limitations of the district will be explained to the grand jury by the district judge."

http://www.ndd.uscourts.gov/jury/jury_handbook_grand_jurors.pdf

Seems clear that the Grand Jury can only have jurisdiction over the district in which it sits.

[Pilsner]

Seems clear that the Grand Jury can only have jurisdiction over the district in which it sits.

I believe that when a criminal conspiracy is alleged, the case may be indicted in any district where an overt act in furtherance of the conspiracy took place.