An elderly gentleman of 83 arrived in Paris by plane.  At
the French customs desk, the man took a few minutes to
locate his passport in his carry-on bag. "You have been to
France before, monsieur?" the customs officer asked,
sarcastically. The elderly gentleman admitted he had been to
France previously. "Then you should know enough to have your
passport ready." The American said, "The last time I was
here, I didn't have to show it." "Impossible.  Americans
always have to show your passports on arrival in France!"
The American senior gave the Frenchman a long hard look.
Then he quietly explained.  "Well, when I came ashore at
Omaha Beach on D-Day in 1944 to help liberate this country,
I couldn't find any Frenchmen to show it to."