Regarding the article "UN Keeps Nation's Focus On Needs of Children," Oct. 29: The UN's goal to focus on the children is a sound idea, especially to improve the health care of children worldwide. It was promising to note that 80 percent of the world's children under age 1 have now been immunized due to UN efforts.This is a great accomplishment for the UN, one that should be congratulated. S. Stockwell, Rexburg, Idaho Letters are welcome. Only a selection can be published, subject to condensation, and none acknowledged. Please address them to "Readers Write," One Norway St., Boston, MA 02115.