Spanish authorities say they suspect an attempt by the Sinaloa cartel to establish a presence in Spain . Dark Waters was initiated in May 2009 by the FBI 's office in Boston , Massachusetts , which was looking into the cartel , said the statement . ` ` They 're already operating in Europe , '' says author Malcolm Beith about the Spanish cartel . Two Mexican men are arrested . One of them is a cousin of the cartel leader ` ` El Chapo '' Guzman .
Spanish authorities say they suspect an attempt by the Sinaloa cartel to establish a presence in Spain . ` ` They 're already operating in Europe , '' says author Malcolm Beith about the Spanish cartel . Two Mexican men are arrested . One of them is a cousin of the cartel leader ` ` El Chapo '' Guzman .