The three Senators, all members of the Senate Intelligence Committee, have submitted amicus briefs to share with the court that, from what they've seen, there's no evidence that the bulk data collection program has been at all useful -- which is likely to be a key claim by the DOJ.

Based on the experience of Amici, the public—and this Court—should view the government’s claims regarding the effectiveness of its surveillance programs with searching skepticism and demand evidence rather than assurances before accepting them.