Two White House administrations and Congress have separately tried to launch three FHA programs designed to help various constituencies of distressed homeowners since the housing market began to crash in 2007, and none of them have accomplished much. Still, policymakers keep trying. The Obama administration this week announced a handful of changes to the FHA Short Refinance program in hopes of increasing volume. The program, aimed at borrowers who are current on underwater conventional loans, is also being extended through December 2014. According to the most recent FHA data available, only 2,163...