One journalist was killed while resting in a hammock at a carwash. A second was dragged from his car and shot dead near the newspaper he had co-founded. When another was killed in front of her son, the criminals left a note, 'For your long tongue'. Human rights groups say Mexico is one of the most dangerous countries for reporters. More die here than in any other nation at peace. But even for a country so used to drugs-related violence and organised crime, the recent bloodshed has been shocking. Seven journalists have been killed in the country so far this year, most shot by gunmen in broad daylight. Yet virtually all cases of attacks on the press end up unsolved and, in many, corrupt officials are suspected of partnering with criminals. As the killings mount, is there anything that Mexico can do to save its journalists?