Mercy

'Mercy (Misericórdia)' foi escrita e gravada durante as sessões de "How To Dismantle An Atomic Bomb" em 2004, mas nunca foi editada oficialmente pela banda, apesar de ter vazado na época na internet, uma versão de 6 minutos e meio de duração, que se tornou mítica e legendária, entre os adoradores e seguidores do U2.

A letra da canção veio no livro da edição de colecionador do álbum 'How To Dismantle An Atomic Bomb'.
A letra e o áudio da versão de 2004:

I was drinking some wine... and it turned to blood
What's the use of religion... if you're any good
I know i'm weedkiller honey... and you're sugar
If you're the prosecution... i get away with murder
If you were ice... i'm water
And with your telescope... i can see further
We're binary code... a one and a zero
You wanted violins... and you got nero
You're gravity... searching for the ground
You're silence... searching for a sound
Your heart is aching... your heart is my home
It's fascinating... i know i'll never be alone
I'm rippin' the stitches
You got two hands to rub
I'm diggin'the ditches
Of someone else's love
Love is when i lie
Love puts the blue back in my eye
Love will come again
I'll be gone again... again
If you're hunger... baby let me feed it
If your heart is full... baby let me bleed it
And happiness is for... those who don't really need it
You love me... too much
You always loved me... too much
When i was rippin' the stitches
You got two fists to rub
I'm rippin' the stitches
Of someone else's luck
Love is when i lie
Love puts the blue back in my eye
Love has come again
I am gone again
Love's got to be with the weak
Only then love gets a chance to speak
Love will come again
I'll be gone again... again
I... i can't escape myself
I hear you talk
Feeling nothing
I fear nothing
Feel....
I can hear so much
Fear nothing
I feel so much
Fear... nothing
Love has come again
I am gone again
Love is the end of history
The enemy of misery
Love has come again
I am gone again
Love is justice, not charity
Love brings with it a clarity
Love has come again
I'm alive again
Alive...
I am alive, baby i'm born again and again
And again, and again and again and again
Again

No segundo show de Zurique pela 360º Tour, 'Mercy' (ainda inédita em sua versão final de estúdio), foi apresentada aos fãs do U2 pela primeira vez ao vivo, com Bono dizendo que 'esta é a primeira vez que a tocamos ao vivo fora de uma passagem de som'.
Depois de longos 6 anos da versão vazada e muitas especulações sobre o que aconteceria com 'Mercy', a banda modificou a canção, encurtou a letra e a duração da música, mexeu no refrão, adicionou novas partes na letra e um novo solo de guitarra de Edge, para assim mostrar a remodelada canção para os que aguardavam uma aparição da mítica 'Mercy'.
Mesmo tendo sido essa a primeira vez que a música foi tocada, ao que parece o U2 finalmente tem sua versão definitiva para 'Mercy', e a provável letra é esta, juntamente com o vídeo atualizado da segunda apresentação da canção, em Munique, Alemanha (15/09):

I was drinking some wine
And it turned to blood
What’s the use of religion
If you’re only good

I know I’m weed killer, honey
And you’re sugar
If you’re the prosecution
I get away with murder

You’re gravity searching for the ground
You're silence searching for a sound

Your heart is aching
Your heart is my home
It’s fascinating
I know I’ll never be alone

You’re gonna kill me and I wanna die
We were meant for each other, you and I
Souls allowed to love
And there’s nowhere else to turn

You’re not sorry, you’re not gonna cry
You put the blue back in my eye
It’s just us
Because, because, because we can
We must

If you’re hunger, baby let me feed it
If your heart is full, baby let me bleed it
And happiness is for those who don’t really need it
You love me too much

You wanna kill me and I wanna die
We’re a perfect match, you and I
Slaves without the drug
And there’s no one else to trust

I’m not sorry, you’re not gonna cry
You put the blue back in my eye
It’s just us
Because, because, because we can
We must

I’m gonna kill me and I wanna die
We were meant for each other, you and I
Souls allowed to trust
And there’s no one left to trust

I’m not sorry, you’re not gonna cry
You put the blue back in my eye
It’s just us
Because, because, because we can
We must
Because, because, because we can
We must
Because, because, because we can
We must