The document discusses the continuous reinvention of the machinery of government. It begins by defining the machinery of government as the structural arrangements that allow government to function at different levels. It notes that over time, through internal evaluation or external demands, organizations realize deficiencies exist and may undertake reorganization or reinvention. Government is constantly fine-tuning its machinery by implementing new public policies. The document then describes the different branches and levels of government in the United States and their roles. It discusses past movements to reinvent government to address issues like waste and diminishing public trust. In conclusion, it provides an exercise for students to debate the appropriate role of government in the 21st century.