"America's Paper of Record", which is now owned in part by Mexican billionaire Carlos Slim. Their immigration stories cannot be trusted because they're always incredibly slanted in support of illegal activity and are frequently little more than editorials disguised as news stories. For examples, see the Nina Bernstein entry and the other posts linked below. A February 2008 post linked to some prime examples of the NYT's reporting on immigration.
See also the evisceration of various NYT editorials.