right, the intro is played up around the 9th fret
[ Tab from: http://www.guitaretab.com/t/tom-morello/188145.html ]
|-------------------------------------------------------------------------|
|------------------------9-------------------9----------------------------|
|------9--9--------9h11-----11-9-11----11h9----11-9--11p9/6--------9h11-9-|
|-9h11------11-9---------------------------------------------9h11---------|
|-------------------------------------------------------------------------|
|-------------------------------------------------------------------------|
the rest is some pretty simple chord work.
|-0--------x--------x--------0----|
|-0--------x--------x--------2----|
|-1--------4--------x--------2----|
|-2--------4--------11-------2----|
|-2--------2--------11-------x----|
|-0--------x--------9--------x----|
E B C#m Amaj
enjoy!