Mexico's Senate has approved constitutional changes that would make all attacks on journalists a federal crime.
The amendments endorsed by the Senate and earlier by the House of Deputies would have the federal Attorney General's Office investigates all crimes against news workers.
The changes won't take effect unless they are approved by at least 17 of Mexico's 31 state legislatures and are then signed by the president.
Attacks on Mexican journalists generally go unprosecuted.
There is disagreement on the number of journalist killings. Mexico's national human rights commission says 74 were slain from 2000 to 2011. The New York-based Committee to Protect Journalists says 51 were killed in that time.