This is how I hear it. May be some slight variation but this should do it for you.

Beginning (do twice):
G---------------------------------------------------------------------------|
D-------------------------------------------------------------------11-11---|
A----------12-12-----------------14-14--------9-9-9-----9-----9-9-9-------9-|
E-10-10-10-------10-----12-12-12-------12-----------9-9---------------------|

Then when they start singing (and most of the song):
G--------------------------------------------------------------------------|
D------------------------------------------------------------------11-11---|
A----------12-12-----------------11-10-9-----9-9-9-----9-----9-9-9-------9-|
E-10-10-10-------10-----12-12-12-------------------9-9---------------------|

Interlude "Watch the Middle East...", do a couple times then back to above
G----------------------------------------------|
D----------------------------------------------|
A----------12-12------------------14-14--------|
E-10-10-10-------10-----12-12-12--------12-----|

G----------------------------------------------|
D----------------------------------------------|
A----------12-12-----------------11-10-9-------|
E-10-10-10-------10-----12-12-12---------------|