For now Congress is debating some modest tax incentives.But a more ambitious idea is gaining support: to allow the Federal Housing Administration to refinance troubled mortgages at a discount.

• 因为现在国会正在讨论一些微幅的税收刺激，一项更冒险的计划正获青睐：允许联邦住房局给有麻烦的抵押贷款按一定折扣二次融资。