Add the Social Security offices. Last visit here in Phoenix, the place was packed ...with illegals at an average age of about 30-35. Many babies. All instructions over the loud speaker given in both English and Spanish. Those over 65 (i.e. people who paid into Social Security all of their adult lives), were maybe 15%.
Between illegals and the long term unemployed that became disabled, Social Security is not so secure.
On another note, I wonder what the current border situation is now? Would think that illegal crossing would be down sharply already.