I have no knowledgw of a sister Joan Chittister, OSB nor of her writings. However, it might appear that the whole page advertisement can be directed towards her because there is no signatories of the said advertisement. Was the advertisement a paid or not or was it a part of the campaign of the inquirer. As far as my knowledge is concern paid advertisement should include the payee and people concern of the said letter. It might wrongly appear that it is a part of Inquirer's program or there is a hidden powerful hand behind it.
let us pray, that people will not be deceived of this dirty tactics that will distract us from what we fundamentally believe, the sacredness of life even of the unborn.