Elliott Cheu, via a kind reader’s email:

Students in the 21st century face an array of difficult problems ranging from our reliance upon nonrenewable fuel sources to the demands of an ever increasing population.
While education alone is not a panacea to these issues, without a strong educational background, our citizenry will be unable to tackle these problems head-on. The STEM fields (science, technology, engineering and mathematics), in particular, will serve to guide us in achieving a more sustainable and prosperous future.
In spite of the fact that our world is becoming increasing dependent upon knowledge, and its creation, only 4 percent of the U.S. workforce is composed of engineers and scientists, according to the 2010 report “Science and Engineering Indicators.”