Video makers can take heart from other creator groups' reliance on fair use. For instance, historians regularly quote both other historians' writings and textual sources; filmmakers and visual artists reinterpret and critique existing work; scholars illustrate cultural commentary with textual, visual, and musical examples. Equally important is the example of commercial news media. Fair use is healthy and vigorous in daily broadcast television news, where references to popular films, classic TV programs, archival images, and popular songs are constant and routinely unlicensed.