| web | James Walker | Newsweek | 2020-03-20 | |
| web | Paul Blumenthal | Huffington Post | 2017-01-30 | |
| web | Nelson D. Schwartz | Fortune | 2005-10-31 | |
| web | Financial Times | 2004-02-24 | ||
| web | D. Brian Blank and Dallin Alld... | The Conversation | 2023-08-24 | |
| web | Robert Faturechi and Ellis Sim... | ProPublica | 2023-03-16 | |
| web | Zachary Roth | The Ticket | 2012-03-19 | |
| web | Julie Creswell | New York Times | 2005-10-04 | |
| web | Gretchen Morgenson | New York Times | 2004-12-05 | |
| web | John Grgurich | Fiscal Times | 2014-06-20 |