The President nominates the position of a United States Attorney to each of the 94 federal districts (Guam and the Northern Mariana Islands are separate districts, but they have a common United States Attorney). It is the United States Attorney is the most senior federal law enforcement official within their respective district. They are as well involved in civil lawsuits in which it is the United States is a party.
The work and the names of United States Attorneys may go under the radar, however some of the most important cases they deal with are known to everyone. The Brink's robbery that was the most famous, and the Birdman of Alcatraz and the case of Aaron Burr, the Chicago Seven, Al Capone, the fake biographical sketch that was written by Howard Hughes, the civil rights killings at Philadelphia, Mississippi, the admission to James Meredith into the University of Mississippi, all of which are part of the endless number of cases that are handled by those working as "the attorney for the United States." Many many more cases, which aren't known, yet equally crucial have been tried due to the hard work and dedication, the honour of the honor, in the manner that George Washington referred to it that is the responsibility of United States Attorneys. The dedication of these attorneys is more than knowing the law. It also requires a thorough understanding of people , as evident in the actions of a United States Attorney in a southern district in the 1960's. In order to avoid the hassle of legal proceedings In the 1960's, the United States Attorney convinced transit officials of a town within his jurisdiction to take down a "Colored Move to the Back" sign every month until gone. .
The Los Angeles County District Attorney's Office is the biggest attorney in the United States. .