When someone is HIV-positive and his partner says, I want to have sexual relations with you, he doesn't have to do that. But when he does, he has to use a condom.

The word survivor suggests someone who has emerged alive from a plane crash or a natural disaster. But the word can also refer to the loved ones of murder victims, and this was the sense in which it was used at a four-day conference in early June at Boston College.

Rome should sometimes intervene and say this or that is not in conformity with the Catholic faith. Theologians should understand that. Some theologians go too far, for example, reducing the Catholic faith to a universal philosophy.

Artificial Intelligence leaves no doubt that it wants its audiences to enter a realm of pure fantasy when it identifies one of the last remaining islands of civilization as New Jersey.

Global warming has melted the polar ice caps, raised the levels of the oceans and flooded the earth's great cities. Despite its evident prosperity, New Jersey is scarcely Utopia.