WASHINGTON (AP) — The National Security Agency declassified three secret court opinions Wednesday showing how in one of its surveillance programs it scooped up as many as 56,000 emails and other communications by Americans not connected to terrorism annually over three years, revealed the error to the court — which ruled its actions unconstitutional — and then fixed the problem.

Director of National Intelligence James Clapper authorized the release, part of which Obama administration officials acknowledged Wednesday was prodded by a 2011 lawsuit filed by an Internet civil liberties activist group.