Some people play this one step up, I listened to the song and I think you can play it
way but this one sounds better.

Intro (also played during the first verse):
E----0-----0-------------------|
B---1-1---1-1---1-3-1---1-3-1--|
G--2-----0---------------------|
D--------------3-------3-------|
A------------------------------|
E------------------------------|

Am (x02210@1)      C (x32010@1)             FI (133211@1)can't believe the news today
Am (x02210@1)     C (x32010@1)              FI (133211@1)can't close my eyes and make it go away

 C (x32010@1)       DmHow (xx0231@1)long?  How long must we sing this song?
 C (x32010@1)        DmHow (xx0231@1)long? How long?...
       C (x32010@1)      Dm (xx0231@1)                C (x32010@1)      Dm'Cause (xx0231@1)tonight, we can be as one, tonight.

Am (x02210@1)    C (x32010@1)          FBroken (133211@1)bottles under children's feet
Am (x02210@1)   C (x32010@1)               FBodies (133211@1)strewn across the dead-end street
Am (x02210@1)        C (x32010@1)             FBut (133211@1)I won't heed the battle call
Am (x02210@1)       C (x32010@1)              FIt (133211@1)puts my back up, puts my back up against the wall

Am (x02210@1)C (x32010@1)        FSunday, (133211@1)Bloody Sunday
Am (x02210@1)C (x32010@1)        FSunday, (133211@1)Bloody Sunday
Am (x02210@1)C (x32010@1)        FSunday, (133211@1)Bloody Sunday
Am (x02210@1)C (x32010@1)        FSunday, (133211@1)Bloody Sunday
Oh, let's go

Am (x02210@1)    C (x32010@1)            FAnd (133211@1)the battle's just begun
Am (x02210@1)         C (x32010@1)               FThere's (133211@1)many lost, but tell me who has won?
Am (x02210@1)         C (x32010@1)            FThe (133211@1)trenches dug within our hearts
Am (x02210@1)          C (x32010@1)                FAnd (133211@1)mothers, children, brothers, sisters torn apart

Am (x02210@1)C (x32010@1)        FSunday, (133211@1)Bloody Sunday
Am (x02210@1)C (x32010@1)        FSunday, (133211@1)Bloody Sunday

 C (x32010@1)       DmHow (xx0231@1)long?  How long must we sing this song?
 C (x32010@1)        DmHow (xx0231@1)long? How long?...
       C (x32010@1)      Dm (xx0231@1)                C (x32010@1)      Dm'Cause (xx0231@1)tonight, we can be as one, tonight.

Am (x02210@1)C (x32010@1)        FSunday, (133211@1)Bloody Sunday
Am (x02210@1)C (x32010@1)        FSunday, (133211@1)Bloody Sunday

                Am (x02210@1)      C (x32010@1)  FWipe (133211@1)your tears from your eyes
           Am (x02210@1)  C (x32010@1) FWipe (133211@1)your tears away
                Am (x02210@1)  C (x32010@1) FI'll (133211@1)wipe your tears away
                Am (x02210@1)  C (x32010@1) FI'll (133211@1)wipe your tears away
                Am (x02210@1)      C (x32010@1) FI'll (133211@1)wipe your bloodshot eyes
Am (x02210@1)C (x32010@1)        FSunday, (133211@1)Bloody Sunday
Am (x02210@1)C (x32010@1)        FSunday, (133211@1)Bloody Sunday

Am (x02210@1)             C (x32010@1)   FAnd (133211@1)it's true we are immune
Am (x02210@1)             C (x32010@1)   FWhen (133211@1)fact is fiction and TV reality
Am (x02210@1)             C (x32010@1)   FAnd (133211@1)today the millions cry
Am (x02210@1)             C (x32010@1)   FWe (133211@1)eat and drink while tomorrow they die
Am (x02210@1)             C (x32010@1)   FThe (133211@1)real battle's just begun
Am (x02210@1)             C (x32010@1)   FTo (133211@1)claim the victory Jesus won
On...

Am (x02210@1)C (x32010@1)        FSunday, (133211@1)Bloody Sunday
Am (x02210@1)C (x32010@1)        FSunday, (133211@1)Bloody Sunday

Hold Am to finish.

Hope you enjoy, great song BTW. It's not hard to learn the chord pattern, and the intro 
out easily with practice.