Glitches in application system have immigrant households fearful of losing college financial aid. One of the technical problems caused by the most recent revision of the FAFSA is that it has prevented those without Social Security numbers from even beginning to fill out their forms.

“We've been very, very stressed,” said Alma Rodríguez, who moved to the United States 22 years ago to ensure her son had access to higher education. About 5.7 million people have already filed FAFsa forms this year, the Department of Education estimates.