NSA will destroy millions of American calling records’ [metadata] as soon as possible’
The NSA already stopped collecting new (phone) metadata, which now has to be store by the telecom providers themselves.
From Novembre 29th on the data will no longer be used in terrorism investigations, and will progressively be destroyed.
It cannot be done right away as the NSA is currently being sued over it.
▻http://www.theguardian.com/us-news/2015/jul/27/nsa-destroy-american-calling-records