Slander is spoken defamation while libel is written. Libel laws were originally introduced to prevent gentleman's duels from negative reviews. Fair comment defense allows for reviews of performances and creations as they are considered opinions. Dr. Sarah Thornton won her case because the review criticized her skills and techniques, not the work itself. MPs are protected from libel claims in the House of Commons, which is why John Hemming could reveal Ryan Giggs' super-injunction. Problems with UK libel laws are that they favor claimants, burden is on defendants, and cases are very expensive. The editor and writer are liable for any libel in a magazine.