Fannie Mae and Freddie Mac are expected to pay some $5.6 billion to taxpayers based on “normal” second-quarter earnings that were not bloated by big-ticket tax breaks or large litigation settlements, the two government-sponsored enterprises announced this week. Once the two GSEs have made the latest Treasury payment in September, Fannie and Freddie will have returned about $218 billion to taxpayers for the approximately $188 billion in financial support the two firms received after being placed in government conservatorship in September 2008. Under the revised conservatorship agreement announced two years ago this month by the Federal Housing Finance Agency and the Treasury Department, any GSE net worth exceeding $3.0 billion is impounded...