Not waivering but drowning

Who needs an English-language lesson, Glenys Kinnock or The Times's subeditors? Mrs Kinnock wrote a letter to the Editor the other day, about the Burma tragedy. She writes:

"We must not allow our attention to waiver."

Unfortunately, this sentence had the effect of totally distracting me from the contents of Mrs K's otherwise worthy letter. We shall never know, I suppose, whether this sentence was written that way at submission, or if it was written correctly and then edited to be wrong. My interest in knowing the answer probably shall, gradually, waver.