Answer the following within a word limit of 425 words:
Q1: Why do you think it is important for human resource (HR) professionals to study the history of labor?
Q2: Over U.S. history, labor unions have shifted in power and membership (e.g., high in some eras and low in others). What do you think contributes to this shift in power and growth?
Q3: What do you see as the future for labor unions in the U.S. (e.g., growth, shrinkage, more power, less power)? Explain your answer.