It took a number of years before Congress was able to pass a law demanding a literacy test for immigrants.

VOA: special.2010.05.20

Yet wealthier families are the ones best able to pay for test preparation.

VOA: special.2009.09.17

But researchers hope that one day they will be able to do that though a simple blood test, and prevent more deaths like Suzanna's.

VOA: standard.2010.02.08

And she feels proud that she was able to do it. "Sometimes you can feel defeated when you have to study for a test and your baby is crying or something else is going on,"

VOA: standard.2009.12.04