Is The Federal Reserve Insolvent?

"The fact that the mortgage-bond spread has just hit a record tight is merely an ongoing artifact of the Fed's endless meddling in the mortgage market, with the sole purpose of keeping rates artificially low, and preventing banks from being forced to take massive writedowns on their entire loan book. This is all well known. What, however, seems to have escaped public attention is what the impact of these delinquencies is on the one largest holder of Mortgage Backed Securities, the Federal Reserve. "