[1]https://news.yahoo.com/operation-whistle-pig-inside-the-secret-cbp-unit-with-
no-rules-that-investigates-americans-100000147.html

Documents obtained by Yahoo News show that the Counter Network Division, a secre
tive entity within U.S. Customs and Border Protection, routinely used sensitive.
..

References

   1. https://news.yahoo.com/operation-whistle-pig-inside-the-secret-cbp-unit-with-no-rules-that-investigates-americans-100000147.html