The 12 Federal Home Loan Banks had to take a combined $8.4 billion in other-than-temporary impairment through the first nine months of 2009, mostly due to the continuing deterioration in their non-agency MBS holdings. That helped drive the FHLBanks to a collective $165 million loss during the third quarter, versus a $1.1 billion gain in the previous quarter. “These preliminary combined results were...