Because if not, the Attorney General just made some really powerful enemies:

Speaking firms representing ex-FBI Director Louis Freeh and former chairman of the Joint Chiefs of Staff Gen. Hugh Shelton have received federal subpoenas as part of an expanding investigation into the source of payments to former top government officials who have publicly advocated removing an Iranian dissident group from the State Department list of terrorist groups, three sources familiar with the investigation told NBC News.

The investigation, being conducted by the Treasury Department, is focused on whether the former officials may have received funding, directly or indirectly, from the People’s Mujahedin of Iran, or MEK, thereby violating longstanding federal law barring financial dealings with terrorist groups. The sources, all of whom spoke on condition of anonymity, said that speaking fees given to the former officials total hundreds of thousands of dollars.

In total, MSNBC reports that 40 former senior U.S. government officials participated in the lobbying campaign for the People’s Mujahedin of Iran (MEK), a cult-like organization that was listed as a terrorist group under the Clinton administration. The MEK was involved in attacks on American citizens in the 1970s, but has since attempted to ally itself with the United States in the fight against the Iranian regime. According to reports, the group may also be aiding Israel’s covert assassination campaign against Iranian nuclear scientists.

In addition to Freeh and Shelton, other ex-government officials snagged in the investigation include former DNC chairman Edward Rendell, former Attorney General Michael Mukasey, and former Department of Homeland Security chief Tom Ridge.

But it’s still unclear how far the Department of Justice will go on its investigation. So far, there haven’t been any reports that Jim Jones, former National Security advisor to President Obama, has been issued a subpoena, despite his reported involvement in the MEK lobbying effort. Will Jones be subpoenaed by Holder as well? And if not, why not?