Diana Mora, 18, of Chicago, would love to attend Northwestern because it's a "really great school'' with "really good prestige.'' Martha, 20, of Chicago, earned high grades at Roosevelt High School in hopes of attending the elite university in Evanston. But even though both graduated at the top of their respective classes and both were accepted for admission at NU, neither can attend. That's because as illegal immigrants from Mexico, they are not eligible for financial aid--either from the government or Northwestern. At $37,338 for a year of tuition and room and board, they said not getting aid is just...