The National Security Agency is putting an end to its sweeping collection of Americans’ phone records Sunday.
The controversial program began 14 years ago under President George W. Bush.
It was kept secret until Edward Snowden leaked its existence in 2013.
In June, President Obama signed a reform measure that took away the agency’s authority to collect the records.
The USA Freedom Act gave the NSA 180 days to transition to more tightly, targeted surveillance methods.
That period expires Sunday.
Under the new law, the NSA must now get a warrant or court order to collect phone metadata from telecommunications companies.
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