Media's freedom to voice lacking in the case of Mexico drug wars

In cases like this media is loosing its freedom to vocie out and publish information as it is life-threatening. So it's not surprising to see journalists who crave to give they are not sure as what and what not to be pulished in newspaper as the consequences they will face would be risking their lives. Do a journalist got the full freedom to express the information he/she perceived and on the other side blogs and twitters are reaching out to many readers increasing readership.