<font face="Verdana, Arial, Helvetica, sans-serif" size="2">Originally posted by doc:
Perhaps yet I personally know of at least one case where this type of "expired" ID was not accepted! Then what? 
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Find someone who knows the rules. Expired US PPs are valid ID
and proof of US citizenship. The following is from a
FAQ that may be found on the US State Dept website.
<font face="Verdana, Arial, Helvetica, sans-serif" size="2">I'm renewing my passport. Do I get the old one back?
Yes, we return the old, cancelled passport to you. It is a good idea to keep it in a safe place as it is considered proof of your U.S. citizenship.</font>