While the U. S. Postal Service still issues a Christmas stamp, note the poster in many post offices advertising its seasonal stamps. At the top of the poster is an stamp featuring cookies. Then comes the Hanukkah stamp, only then the Christmas stamp, then the Kwanzaa and Eid (Moslem holiday) stamps. Here's the rub. All holidays are clearly labeled on the poster: Hanukkah, Kwanzaa, Eid--except for the Christmas stamp. That one is labeled "Madonna and Child." They won't use the "C" word on the poster (though it is used on the stamp).