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The National Security Agency (NSA) has admitted to buying records from data brokers detailing which websites and apps Americans use, US Senator Ron Wyden (D-Ore.) revealed Thursday.

This news follows Wyden’s push last year that forced the FBI to admit that it was also buying Americans’ sensitive data. Now, the senator is calling on all intelligence agencies to “stop buying personal data from Americans that has been obtained illegally by data brokers.”

“The US government should not be funding and legitimizing a shady industry whose flagrant violations of Americans’ privacy are not just unethical but illegal,” Wyden said in a letter to Director of National Intelligence (DNI) Avril Haines. “To that end, I request that you adopt a policy that, going forward,” intelligence agencies “may only purchase data about Americans that meets the standard for legal data sales established by the FTC.”