The board obeys the law, not political masters. The FDIC has a preemptive role. It regulates banks and savings and loans with the aim of avoiding insurance claims by depositors. When an institution becomes unsound, the FDIC can either shore it up with loans or take it over. If it does the latter, it can run it and then sell it as a going concern, or close it, pay off the depositors and try to collect the loans. At times, the FDIC ends up owning collateral and trying to sell it. Another outcome of the scandal was the Resolution Trust Corporation (RTC). Many savings and loans were treated as "special risk" and placed under the jurisdiction of the RTC until August 1992. The RTC operated and sold these institutions - or paid off the depositors and closed them. A new government corporation (Resolution Fund Corporation, RefCorp) issued federally guaranteed bailout bonds whose proceeds were used to finance the RTC until 1996. The Office of Thrift Supervision (OTS) was also established in 1989 to replace the dismantled Federal Home Loan Board (FHLB) in supervising savings and loans. OTS is a unit within the Treasury Department, but law and custom make it practically an independent agency. The Federal Housing Finance Board (FHFB) regulates the savings establishments for liquidity. It provides lines of credit from twelve regional Federal Home Loan Banks (FHLB). Those banks and the thrifts make up the Federal Home Loan Bank System (FHLBS). FHFB gets its funds from the System and is independent of supervision by the executive branch. Thus a clear, streamlined, and powerful regulatory mechanism was put in place. Banks and savings and loans abused the confusing overlaps in authority and regulation among numerous government agencies. Not one regulator possessed a full and truthful picture. Following the reforms, it all became clearer: insurance was the FDIC's job, the OTS provided supervision, and liquidity was monitored and imparted by the FHLB. Healthy thrifts were coaxed and cajoled to purchase less sturdy ones. This weakened their balance sheets considerably and the government reneged on its promises to allow them to amortize the goodwill element of the purchase over 40 years. Still, there were 2,898 thrifts in 1989. Six years later, their number shrank to 1,612 and it stands now at less than 1,000. The consolidated institutions are bigger, stronger, and better capitalized. Later on, Congress demanded that thrifts obtain a bank charter by 1998. This was not too onerous for most of them. At the height of the crisis the ratio of their combined equity to their combined assets was less than 1%. But in 1994 it reached almost 10% and remained there ever since. This remarkable turnaround was the result of serendipity as much as careful planning. Interest rate spreads became highly positive. In a classic arbitrage, savings and loans paid low interest on deposits and invested the money in high yielding government and corporate bonds.