Los Angeles is becoming a "Third World city" with immigrants making up half its workforce, says a new study.
A third of immigrants have not graduated from high school and 60 per cent do not speak English fluently, the Migration Policy Institute found.
It said this left immigrants ill-equipped to fill California's fastest-growing occupations, such as computer software engineering and nursing. The organisation added that as the so-called baby boomers reach retirement age, a similar pattern will spread across the US.
