But scandal followed Moreira, including a debt of more than $3 million he had saddled Coahuila with, allegedly from fraudulent loans. He was eventually forced to quit the PRI leadership, dashing what many thought to be his presidential aspirations.
Tragedy followed when Moreira's son Jose Eduardo was shot twice in the head execution-style in the Coahuila town of Acuna early last month. Investigators believe that most of the Acuna police department turned Jose Eduardo over to the Zetas as a reprisal for the killing of a nephew of Trevino. The police chief was arrested.
Killing the son of a former governor -- and nephew of the current one, Humberto's brother Ruben -- was a rare strike by drug traffickers into the heart of Mexico's political elite.
In mourning, Humberto Moreira gave a series of remarkably candid interviews in which he accused entrepreneurs from Coahuila's mining sector of sharing the wealth with top drug traffickers who in turn used the money to buy weapons and pay off their troops. They killed his son, he said.
For The Record
Los Angeles Times Saturday, November 10, 2012 Home Edition Main News Part A Page 4 News Desk 1 inches; 41 words Type of Material: Correction
Zetas drug cartel: An article in the Nov. 4 Section A about the Zetas drug gang's power in the Mexican state of Coahuila said that former Gov. Humberto Moreira left the state with a $3-million debt. The debt was $3 billion.
Mining in Coahuila is huge and notoriously dangerous, with companies routinely flouting safety regulations and workers dying in explosions and accidents. The depth to which drug traffickers have penetrated the industry is being investigated by federal authorities.
The question on the minds of many Mexicans was: If Moreira was so aware of criminal penetration, why didn't he stop it?
Critics suggest that during his tenure, he was happy to turn a blind eye to the growth of the Zetas as long as he could pursue his business and political interests. He denies that now and says fighting organized crime was up to the federal government; the federal government blames state officials, in Coahuila and elsewhere, for coddling the drug lords.
"The northern governors have long cut deals with the cartels that operate in their domains. The pattern in the north is cooperation," said George W. Grayson, a Mexico scholar at the College of William & Mary in Williamsburg, Va., who has written extensively on the Zetas and Mexican issues.
"The Coahuila police are among the most corrupt in all Mexico."
The extent to which the Zetas' tentacles had penetrated state government became clear this year when federal authorities discovered a protection racket that dated well into Humberto Moreira's administration and was led by none other than the brother of the state attorney general. According to the federal investigation, he and 10 other state officials were being paid roughly $60,000 a month by the Zetas to leak information to the gang.
The nearly 3 million residents of Coahuila, meanwhile, find ways to survive and accommodate.
In rural areas where the Zetas are most commonly seen on the streets, people have learned to be mute and blind. In cities such as Saltillo, they change their habits, don't go out at night, send their children to school in other cities.
A businessman whose family has lived here for generations said, "We are in a state of war, without realizing when or how we got there."