A gangster is a criminal who is a member of a gang. Most gangs are considered to be part of organized crime. Gangsters are also called mobsters, a term derived from mob and the suffix -ster. Gangs provide a level of organization and resources that support much larger and more complex criminal transactions than an individual criminal could achieve. Gangsters have been active for many years in countries around the world. Gangsters are the subject of many novels, films, television series and video games. In modern usage, the term "gang" is generally used for a criminal organization and the term "gangster" invariably describes a criminal. Much has been written on the subject of gangs, although there is no clear consensus about what constitutes a gang or what situations lead to gang formation and evolution. There is agreement that the members of a gang have a sense of common identity and belonging and this is typically reinforced through shared activities and through visual identifications such as special clothing, tattoos or rings. Some preconceptions may be false. For example, the common view that illegal drug distribution in the United States is largely controlled by gangs has been questioned. A gang may be a relatively small group of people who cooperate in criminal acts, as with the Jesse James gang, which ended with the leader's death in 1882. However, a gang may also be a larger group with a formal organization that survives the death of its leader. For example, each of the Five Families founded in the early 20th century, outlasted its founders and have survived into the 21st century. Large and well structured gangs such as the Mafia, drug cartels, Triads or even outlaw motorcycle gangs can undertake complex transactions that would be far beyond the capability of one individual, and can provide services such as dispute arbitration and contract enforcement that parallel those of a legitimate government. The term "organized crime" is associated with gangs and gangsters, but is not synonymous.