21 Salvadorians slain in Mexico

How come Mexico is not talking about this?

http://latino.foxnews.com/latino/news/2011/04/05/el-salvador-says-21-citizens-slain-mexico/
At least 21 Salvadoran migrants were killed last year in Mexico while trying to reach the United States, while 250 others were the victims of serious crimes or human rights abuses, El Salvador's foreign ministry said.

Mexicans love to talk shit about their rights being violated in the USA (even though they have no rights as they are undocumented) while they do this shit to Salvadorians.

even though they have no rights as they are undocumented
Actually, they have plenty of rights. In some cases, more rights than American citizens (for example, the right to 100% free medical care, as hospitals are not legally allowed to turn anyone away and have no means of tracking them down to bill them)