Newsweek: Approximately 25,000 polar bears live in and around the Arctic Circle. Climate change has put the majestic ursines, a longtime favorite of childrens books and Christmas cards, in peril. In 2008, the United States listed them as a threatened species under the Endangered Species Act, and populations have been on the decline since then.
So when is it acceptable for a Marine to shoot one? The Navy is still trying to figure that out.
Walter Berbrick, a retired Navy officer and a professor of...