When "grad student" == "cheap labor", you know this is going to happen. Nowadays even academia can outsource. Just look at the overseas campuses built by MIT, Harvard, etc. The system is just fundamentally wrong. Professors today are no longer independent scholars but are largely driven by grants, and have students as slaves to work on these projects. Universities (==corporations) have incentive to expand the STEM program because that will equal to more grants, meaning more $$$. With that amount of STEM grads being churned out each year, you are pretty sure the job market will not look great.