letter to the editor.
I found a couple letters complaining about that letter (dated Oct. 16 and 18, 2000), but not the original. I remember reading it back then, though.
http://universe.byu.edu/2000/10/18/letter-to-the-editor-both-sexes-should-control-thoughts/
http://universe.byu.edu/2000/10/16/letter-to-the-editor-judging-is-a-sin-in-the-eyes-of-god/
SingleStrapBackpack should be able to give us the link.