Secondly: even if Teddy procured an abortion/abortions and self-excommunicated: he could still be received back into Communion with the Church. A Priest could not reveal the secrets of Teddy's Confession(s) without self-excommunicating.
In neither case (self-excommunication, return to the Church) would Teddy receive a large tattoo on his face denoting his change in status.
Self-excommunication is a fact, but the Church's response to it (refusal of sacraments) cannot be based on telepathy. I guess this is why it's only those who very publically self-excommunicate and who must be immediately restrained from simulating sacraments who get publically pointed out - e.g. dissident Bishops.
In most cases I imagine it would take a public excommunication (ferendae sententiae) for a Priest to be able to refuse the sacraments.
Now I think public excommunication is in order for Catholic abortion advocates - but I admit I may not be seeing the whole picture. Preremptory excommunication is a dangerous weapon to use when you're fighting for someone's soul.
Kennedy and those like him damned themselves. Publicly ex-communicating those of his ilk would save lives and keep many from going down the same path of killing innocents that Kennedy did.