An interesting thing that is happening on Bitcoin mailing list is that although it would be quite easy to add Lamport signatures as an extra safety feature for high value transactions, as they would be quite expensive and easy to misuse (they can be used only once, which is a problem if money is sent to the same address twice), the current concensus between developers is to ,,just wait for NSA/NIST to be ready with the algorithm''. I haven't seen any discussion on the possibility of never being ready on purpose because of a sabotage.