<Tr> <Th> "Voice of the Voiceless" </Th> <Td> Zack de la Rocha Tom Morello Tim Commerford Brad Wilk </Td> <Td> The Battle of Los Angeles </Td> <Td> 1999 </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Th> "Wake Up" </Th> <Td> Zack de la Rocha Tom Morello Tim Commerford Brad Wilk </Td> <Td> Rage Against the Machine </Td> <Td> 1992 </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Th> "War Within a Breath" </Th> <Td> Zack de la Rocha Tom Morello Tim Commerford Brad Wilk </Td> <Td> The Battle of Los Angeles </Td> <Td> 1999 </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Th> "Wind Below" </Th> <Td> Zack de la Rocha Tom Morello Tim Commerford Brad Wilk </Td> <Td> Evil Empire </Td> <Td> </Td> <Td> </Td> <Td> </Td> </Tr>

What are rage against the machine songs about