The Committee to Protect Journalists details the number of journalists around the world who have been killed, and the countries that are uninterested in investigating the cases and punishing the killers.
It releases the numbers in its Impunity Index, with Iraq leading the list.
The killings have a purpose:
CPJ research shows that deadly, unpunished violence against journalists
often leads to vast self-censorship in the rest of the press corps.
Nowhere is that more apparent than in Mexico, where unsolved journalist
murders grew for the third consecutive year. Fear of retaliation has
driven some journalists to report crime news under pseudonyms on social
media websites. But even those sites do not provide refuge: In September
2011, the decapitated body of Maria Elizabeth Macías Castro, a Mexican
journalist who used social media to report crime news, was found
alongside a computer keyboard and a note from a crime group claiming
responsibility.