The warrant was unconstitutional. Read the fourth amendment,
Amendment IV
The right of the people to be secure in their persons, houses, papers, and effects, against unreasonable searches and seizures, shall not be violated, and no warrants shall issue, but upon probable cause, supported by oath or affirmation, and particularly describing the place to be searched, and the persons or things to be seized. The Warrant was so broad that it included the box next to the box that had one paper in it. This clearly violates the Fourth amendment clause of specificity. The word "particularly" means to be exact in one's actions, deliberate, logical. This warrant was a collect everything and the DOJ has stated that. Under the US constitution this is not allowed.