Curiouser and curiouser: the annulment that wasn't

I snipped at Boston Globe Letter Writer David Wildnauer a few days ago and now I'm thinking I shouldn't have...and I also think that David's letter, too, was based on wacky information.

As Lori points out and as Time confirms, the first Mrs. Kennedy wasn't and isn't a Catholic. She's an Episcopalian.

I understand, of course, that the Roman Catholic Church considers Christian marriage—like Christian baptism—to be a valid sacrament, regardless of original denomination.

What I don't get is why the first Mrs. Kennedy got so darned fired up about the whole thing that she (a) started a movement called "Save Our Sacrament" and then (b) wrote a book about her experience and finally (c) demands the Roman Catholic Church—not her preferred religious preference, mind you—change all Her rules about divorce and remarriage.

While I'm certainly glad that Christians from other denominations take an interest in the Magisterium of the Roman Catholic Church, in this case I've gotta wonder...how come?