The failure of Washington Mutual does not just spell the end of the largest savings and loan in the US, but also of one of the nations two covered bond issuers. At a time when Treasury secretary Hank Paulson is trying to facilitate the launch of domestic covered bonds in the US as a viable mortgage-funding tool, the rescue of WaMu by JPMorgan could have significant implications for that sector. In taking over WaMu, JPMorgan was able to pick and choose which of the failed banks liabilities it wanted to take on. It has not taken any unsecured or subordinated debt but it has taken on WaMus outstanding covered bonds. "JPMorgan had the option not to take on the covered bonds but wanted the assets attached to them," says Fritz Engelhard, director of European fixed-income strategy at Barclays Capital. "Legally, it was free to decide. But if it had not...