By Mike Scarcella, Karen Sloan and Jacqueline Thomsen (Reuters) – The leak of a draft U.S. Supreme Court opinion striking down the landmark 1973 Roe v. Wade decision that legalized abortion has spurned intense national debate over the identity of the leaker and whether the person could face criminal or other sanctions. Here is a look at some of the big questions. COULD LEAKING A SUPREME COURT RULING BE PROSECUTED AS A CRIME? That depends on the origin of the leak and whether any crimes were committed in obtaining the document, such as hacking into a unauthorized computer. Drafts of Supreme Cou…