"I am often amazed at how much more capability and enthusiasm for science there is among elementary school youngsters than among college students. . . . We must understand and circumvent this dangerous discouragement. No one can predict where the future leaders of science will come from."--Carl Sagan

In 2012, the White House put out a call to increase the number of STEM graduates by one million. Since then, hundreds of thousands of science students have started down the path toward a STEM career. Yet, of these budding scientists, more than half of all college students planning to study...