Cage KingsCage Kings is a cultural and business history of the UFC, tracing the unlikely rise of mixed martial arts from what was derided in the '90s as 'human cockfighting'more violence than sportto a global pop culture phenomenon. Senator John McCain once decried mixed martial arts as 'human cockfighting,' while the New York Times despaired that the sport offered a 'pay per view prism' onto the decline of western civilisation. But the violent spectacle of