The David Petreaus scandal

The sudden resignation of David Petreaus as Director of the CIA, has left US President Barack Obama with another gaping hole in his administration. 

Revelations of an extra-marital affair between the retired four-star general and his biographer, Paula Broadwell, have created a storm in Washington, in the first week of the President's second term. 

The affair was uncovered by an FBI investigation. 

In a letter to colleagues, the father of two explained his decision to step down. 

He said his actions were unacceptable, both as a husband and as the leader of an organization. 

To get a sense of the impact of his departure on US security, 938LIVE's Mubin Sa'adat spoke to military historian, Professor Brian Farrell from the National University of Singapore.

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