Many parts of the USA PATRIOT Act have expired. https://www.npr.org/sections/thetwo-way/2015/05/31/411044789/live-blog-facing-midnight-deadline-the-senate-debat

Many parts of the USA PATRIOT Act have expired. https://www.npr.org/sections/thetwo-way/2015/05/31/411044789/live-blog-facing-midnight-deadline-the-senate-debates-parts-of-the-patriot-act https://www.npr.org/sections/thetwo-way/2015/05/31/411044789... Other parts have been modified. https://en.wikipedia.org/wiki/USA_Freedom_Act https://en.wikipedia.org/wiki/USA_Freedom_Act