In academe, the education division of the National Endowment for the Humanities has prepared a lesson plan for schools asking whether "robber baron" or "captain of industry" is the better terminology. They state:In this lesson, you and your students will attempt to establish a distinction between robber barons and captains of industry. Students will uncover some of the less honorable deeds as well as the shrewd business moves and highly charitable acts of the great industrialists and financiers. It has been argued that only because such people were able to amass great amounts of capital could our country become the world's greatest industrial power. Some of the actions of these men, which could only happen in a period of economic laissez faire, resulted in poor conditions for workers, but in the end, may also have enabled our present day standard of living.This debate about the morality of certain business practices has continued in the popular culture, as in the performances in Europe in 2012 by Bruce Springsteen, who sang about bankers as "greedy thieves" and "robber barons". During the Occupy Wall Street protests of 2011, the term was used by Vermont Senator Bernie Sanders in his attacks on Wall Street. The business practices and political power of the billionaires of Silicon Valley has also led to their identification as robber barons.