"El Sorias," as he is affectionately called by his colleagues, is a photojournalist for the Mexican city's two main daily newspapers, El Diario and El PM. For the last 10 years, his job has been to photograph the bodies and crime scenes left behind after cartel hit men completed their work.

"I see the photos of the dead as art, not as dead people. I feel sad for the families, they cry and sometimes I cry too," Soria told CNN in a recent telephone interview.

"My record is 16 dead in one shift."

A regular shift goes from 6 a.m. to 2 p.m., or later if there are any last-minute bodies. The day is spent listening to police scanners and waiting for the code that will send Soria and a reporter rushing through the city's congested streets to a new crime scene.

"Z-59 is the code for execution and Z-23 is the code for a dead person," he said.

Soria knows that arriving at a crime scene too soon could mean a surprise encounter with the killers -- one that could cost him his life.

He is part of a group of journalists operating in one of the world's most dangerous cities. Every day the passion for their profession competes with the fear of death.

The New York-based Committee to Protect Journalists reports that 26 journalists have been killed since 2005 in Mexico -- most of them while covering the crime or corruption beats. By comparison, 10 journalists were killed in the same time period while covering the war in Afghanistan.

"There are challenges to the fulfillment of our mission, challenges we have never faced before," said Rocio Gallegos, the editor of El Diario, the city's main news publication, with a circulation of 55,000.

"Any journalist in Ciudad Juarez is at risk," she said.

For the paper's staffers, death hit home last year with the murder of veteran crime reporter Armando "El Cholo" Rodriguez.

On November 13, 2008, unidentified gunmen shot and killed Rodriguez, 40, while he was parked in front of his house with his 8-year-old daughter in the car; she was not harmed.

Rodriguez had been receiving threats since February, Gallegos said.

One year later, no one has been charged in his death, and the two lead federal investigators in the case have also been killed. A spokesperson for the attorney general's office told CNN the case is still under investigation, but local journalists have interpreted this as a grant of impunity for crimes against their profession.

"The death of Armando Rodriguez left a clear message for everyone: Mind your own business! 'No te metas en donde no debes,'" said Edgar Roman, director of news programming for Channel 44, which broadcasts more than six hours of news each day.

"Our self-censorship began when the war started -- self-censorship to avoid getting our reporters in trouble," said Roman.

For Roman, and for several others in his position, investigative reporting has become a casualty of war.

"We can't investigate because we become targets. Only that which happens in plain view is OK to report," said Roman.

"Everyone knows the rules of the game," said Ricardo Ainslie, professor of educational psychology at the University of Texas in Austin and a member of the Lozano Long Institute of Latin American Studies.

For the last year, Ainslie has been using Ciudad Juarez as the center for his research on the Mexican war against the drug cartels.

"You can report what happens on the street, which is public domain, and sometimes they will get threats if they don't report something," Ainslie said. "They can't report backstories, or make inferences about motives. They are treading lightly because they can not afford to investigate -- this means execution."

Tim Crockett, head of the security firm Pioneer Consulting and security adviser for CNN, described Ciudad Juarez as "probably more dangerous for journalists than the Middle East."

"There are more armed groups that have no respect for law and order," he said. "What would they do if they captured a journalist? There is no leverage. They will just kill you and carry on with their business."

Figuring out how to keep staffers safe from an attack has been an ongoing challenge for newsrooms in Juarez. Armored vehicles and bulletproof vests provide little protection against the .50-caliber bullets fired by the cartels.

El Diario has managed to keep some investigative reporting by omitting reporter bylines. For Gallegos, self-censorship is not the answer.

"We have kept our investigation, which has cost us because we have less access to government sources," Gallegos said. "With the argument of security, authorities have given us less access to information and documents," she said.

"The biggest challenge is to carry out our mission to inform the public without renouncing to our independence from the authorities, and without becoming messengers to the cartels," said Gallegos.

Cartels have begun to time their executions to coincide with live newscasts, journalists say.

Channel 44 evaluates its programming by holding bimonthly focus groups. Roman said his audience has gone from being spectators to being the victims.

"People are asking us to show a city with hope, and not a city of desolation and destruction. People are tired of living like this. Despite all the violence, there are people who want to keep living a normal life," he said.

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