By Mark Karlin, Truthout | News Analysis
Journalists march in Mexico City against the killing of reporters. Sign reads: "I am enraged by being silenced." (Photo: Knight Foundation) Mexico is undergoing an ongoing assault on journalists, including the killing in the last few years of at least 45 reporters and photographers, as estimated by CPJ's Mike O'Connor. However, O'Connor, who reports from Mexico, explained to Truthout that the figure might be on the low side because the CPJ has rigorous standards for identifying who constitutes a working journalist. Furthermore, due to the lack of police investigations in the vast majority of murder cases, it is not clear how many journalists are killed for what they have revealed in print or just for knowing too much information. O'Connor must investigate much of the scant details available about the killings himself. Even then, doubt often lingers as to why a reporter or photographer died.