[1]https://news.yahoo.com/senators-cia-secret-program-collects-01140900
   1.html
The CIA has a secret, undisclosed data repository that includes information coll
ected about Americans, two Democrats on the Senate Intelligence Committee said .
..

Thursday. While neither the agency nor lawmakers would disclose specifics about
the data, the senators alleged the CIA had long hidden details about the program
 from the public and Congress.
Sens. Ron Wyden of Oregon and Martin Heinrich of New Mexico sent a [2]letter to
top intelligence officials calling for details about the program to be declassif
ied. Large parts of the letter and documents released by the CIA were blacked ou
t. Wyden and Heinrich said the program operated “outside the statutory framework
 that Congress and the public believe govern this collection.”
There have long been concerns about what information the intelligence community
collects about Americans. The CIA and National Security Agency have a foreign mi
ssion and are generally barred from investigating Americans or U.S. businesses.
But the spy agencies’ sprawling collection of foreign communications often snare
s Americans' messages and data incidentally.

References

   1. https://news.yahoo.com/senators-cia-secret-program-collects-011409001.html
   2. https://www.wyden.senate.gov/imo/media/doc/HainesBurns_WydenHeinrich_13APR21 -FINAL.pdf