A British photographer has gained access to a prison in El Salvador even the guards refuse to enter. Adam Hinton went inside to meet members of one of the world's most dangerous gangs held there. The inmates, including drug dealers and murderers, are covered in tattoos that tell of the crimes they've committed . The gang members have been allowed to run the prison on their own, with the guards only patrolling outside.br br SEE MORE AT: br br MS-13 by Adam Hinton is published by Paul Belford Ltd ( )br br RT LIVE br Subscribe to RT! br Like us on Facebook Follow us on Twitter Follow us on Instagram Follow us on Google+ Listen to us on Soundcloud: br RT (Russia Today) is a global news network broadcasting from Moscow and Washington studios. RT is the first news channel to break the 1 billion YouTube views benchmark.