Fannie Mae gave its critics another opportunity to slam the government-sponsored enterprise this week when it revealed that it probably fell a tad short of some of its low-income housing goals mandated by the Department of Housing and Urban Development for 2005. HUD’s revised GSE affordable housing goals went into effect in 2005 and set, for the first time, so-called subgoals for financing home purchase-money mortgages. The two that Fannie had trouble with were home-purchase