The military and businesses recruit on college campuses. No surprise there: there's an ample supply of bright young people looking for things to do in the future.
Which is also why white supremacist groups have targeted college campuses. The Anti-Defamation League (ADL) keeps statistics of attempts to recruit college students, and finds a sharp upswing over the last couple of years. ADL Regional Director Seth Brysk visits with news of the recruiting efforts and the responses to them.