I just saw an article on Forbes that describes a recall from Smith & Wesson.
This recall affects their Walther PPK and PPK/S models. As an FYI, Smith & Wesson does not manufacture the Walthers, but they do import them into the US.
If you have a PPK or PPK/S manufactured between March 21, 2002, and February 3, 2009, you will want to check the recall notice.
Cheers,
Dave