Working for a modest wage among powerful criminals, Mexican prison guards are caught between a rock and a hard place, often helpless against the muscle and financial might of drug gangs like Joaquin "El Chapo" Guzman's Sinaloa Cartel.
Guzman's escape from a maximum security prison on Saturday, his second in 1
5 years, has brutally exposed the limitations of a system both incapable of containing its most infamous inmate and often controlled by those behind bars.
Prisoners, officials and workers say that money rules inside prison walls, changing hands for everything from access to telephones and visits by . . .