For the third time in the post-war period, the United States banking system is insolvent. When President Barack Obama's economic advisor Paul Volcker chaired the Federal Reserve's Board of Governors in 1981, the collapse of emerging-market borrowers left the big American banks on the verge of bankruptcy. The collapse of the junk-bond market in 1990 followed by the real estate market in 1991 left the system insolvent once again.
http://www.atimes.com/atimes/Global_Economy/KA24Dj02.html
http://www.atimes.com/atimes/Global_Economy/KA24Dj02.html