DUNCAN — Letters should be limited to 300 words and free of personal abuse. Any letter endorsing a political candidate must focus entirely on that candidate, with no comments regarding his or her opponent. All letters must be original, carry the name, signature, address and daytime telephone number of the sender to ensure the letter’s validity. Letters that do not meet these criteria will not be published. The Banner reserves the right to limit frequent writers and to edit all letters in accordance with the laws of libel, good taste, style and space limitations. The Duncan Banner welcomes letters and guest columns. Mail them to The Duncan Banner, ATTN: Editor, Box 1268, Duncan, OK 73533 or e-mail them to: email@example.com. Please add a phone number to confirm the authenticity of the submission.