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| web | Weston Williams | Christain Science Monitor | 2017-01-29 | |
| web | Julian Hattem | The Hill | 2016-09-14 | |
| web | Ken Dilanian | Associated Press | 2014-09-25 | |
| web | Nicole Perlroth and Scott Shan... | New York Times | 2013-10-03 | |
| web | Ellen Nakashima | Washington Post | 2007-12-22 | |
| web | Declan McCullagh | CNET News | 2006-07-07 | |
| web | Dan Eggen | Washington Post | 2003-12-13 | |
| web | William M. Arkin | Los Angeles Times | 2003-11-23 |