We can seriously reduce "illegal" border crossing with simple welfare reform. But that is a political hot potato that no politician will touch. While "illegal" aliens cannot receive welfare benefits except emergency medical, food stamp benefits are very generous. The way the family income is calculated it is very easy for a family with children that are born here to qualify for food stamps. It is often enough to feed the entire family, legal or not. The more children the better. It is a huge and expensive problem that will not be addressed without voters demanding it. And that also will not happen in enough numbers.