Organized Labor. Pro or Con?

Based on all 5 documents it is pretty easy to say that the working conditions were not getting much better. When ever the Labor Union, or Knights of Labor tried to make the working conditions better, it just ended with conflict, violence and in many cases death. Based on Document D, when unions tried to make working conditions better the business would just cut back on employees to save money. Based on document F all of the different forms of government and unions are just fighting over who says what and Document G just shows that fighting/striking for better working conditions just ended with deaths of the strikers and even just people who were watching the fights. To conclude I feel that organized labor was a short term failure and a long term victory, because Document A shows that over a period of about 20 years the pay went up and the hours went down for workers.