I believe it was "Sum of All Fears". Just remember the opening story where in 1967 during the middle east war when Israel thought she would be overrun & defeated. The leadership loaded a nuke onto an airplane. The plane was to fly under radar. Unfortunately, the plane crashed in the desert and the nuke didn't explode but was covered up by the sand for about 35-40 years. A muslim found it and dug it out of the sand and subsequently sold it on the black market to some terrorists. There was some radiation leakage that the muslim died from. Anyway, that's the most I can remember of the movie. I saw the movie only once. Real memorable, huh?
Yes, that's The Sum of All Fears.
In the original book, the Palestinians use the nuke, not neo-Nazis.