Caroline Kennedy, the Roman Catholic daughter of the assassinated President, has been rejected by the Vatican as the next US ambassador to the Holy See because of her liberal views on abortion, stem-cell research and same-sex marriage, according to Vatican insiders. Andrea Tornielli, the biographer of Pope Benedict XVI, said that at least two other potential ambassadors put forward by President Obama have also been blocked because they did not share the Vatican’s views on “pro-life” issues. A Vatican spokesman said that no candidates had been formally submitted “and therefore it is not true that they have been rejected”. Vatican...