Nevada had by far the most threats and inappropriate communications against judges and other court officers last year, compared with other federal court districts.
A U.S. Marshals Service tally was part of a Justice Department inspector general report made public today in Washington.
It says federal judges are in danger because marshals don't work fast enough to protect them from growing threats of violence.
The report says Nevada had 227 reports of threats and inappropriate communications with court officials in fiscal 2006.
That was almost five times the next-closest district, Central California, with 46 reports.