It's difficult not to be immediately skeptical at this retirement considering the timing and circumstances surrounding the announcement. His kids are college-aged and this is quite an unusual time to resign. The fact that he is being replaced with White House lawyer Avril D. Haines (Obama's deputy council in charge of national security), seems to indicate that this is either in light of the Benghazi 'scandal' or that the Obama administration is purging intelligence officials who may not be entirely loyal in the wake of the NSA leaks. There is without a doubt far more to this story.