Samples:

• "You're Gonna Get Yours" performed by Public Enemy - Yo! Bum Rush the Show by Public Enemy
  

References:

• 9/11 - 11 September 2001, nearly 3000 people were killed when terrorists hijacked airliners and crashed them into the World Trade Centers in New York City, the Pentagon in Washington D.C., and into a Pennsylvania field
  
• UN - the United Nations, an international organization established immediately after World War II, founded by "peace-loving states" to oppose future aggression
  
• Bush - George Walker Bush (1946-) former governor of Texas, current president of the United States of America
  
• FBI - Federal Bureau of Investigation, a division of the U.S. Department of Justice charged with investigating all violations of federal laws and with safeguarding national security
  
• Internet - international computer network linking smaller computer networks together worldwide
  
• Socialism - a political and economic theory that advocates a system of collective or government ownership and management of the means of production and distribution of goods
  
• Capitalism - an economic system based on private ownership of the means of production, in which personal profit can be acquired through investment of capital and employment of labor
  
• Militarism - the tendency to regard military efficiency as the supreme ideal of the state and to subordinate all other interests to those of the military
  
• Schism - a division or disunion into mutually opposed parties
  

Sample & Reference Breakdown:

• "Get with it" sampled from "You're Gonna Get Yours" performed by Public Enemy
  
• "This government needs a tune up" sampled from "You're Gonna Get Yours" performed by Public Enemy

Beastie Boys:

"This was a song that we were working on a while back but never finished." - Adam Yauch (2004)