Lyric discussion by grammarsalad 

"Duplicity isn’t new"

I think this is the key line.

Notice the blatant reference to Christianity "Turn your fucking cheek"
Generally this is supposed to suggest humility, forgiveness, perhaps supplication. This act of humility, it might be hoped, serves to show your enemy the error in his ways. Let God 'whisper in his ear' in a sense.

But it also suggests that certain things must be 'left to God.' In this second vein one can see it as turning away from a situation that is slapping your proverbial face. Like when the TV is showing starving children in Africa or enslaved workers in China which might make us think twice about buying that diamond or ipod.

"With these milky lips We’re kissing violence On these loving tongues we burn up kings"

In our quest to satisfy the flesh--ironically considered secondary to the spirit in (much) modern Christian theology btw--we facilitate the violence that the satisfaction perpetrates. (I'll speak for America because that's what I know about the most. Though I'm sure Australia has its parallels.) Columbia and Mexican gangs murder each other and any inconvenient civilians for the privilege of supplying us with our drugs. Communist fascists enslave their people pushing them to suicide to supply us with our ipods, ipads, and ifucks.

This isn't Illuminati, this is all below the surface. Perfectly. Normal. Human. Nature.

"Turn your fucking cheek I’m gunna drive the knife through Your stench of deceit Before you get a chance to"

Notice the interrupt at the end? That's us. We've stopped listening. They aren't talking to some anonymous 'Other'--not some "Them" over there but US right here. We deceive ourselves with religion, our 'opiates' and yes, music. There is a frustration here, I think, because music is their (AS's) medium. They want to shout out the truth, drive a knife through this cloud of deceit but there is perhaps also a fear that they are contributing to it.

(Aside: I saw an interview with these guys on Youtube and the interview compared them to Lords of Acid (with songs like, 'Let me see your pussay'--which is fun for an escape but that's about it) and I got the sense that they were offended. I'm sure they aren't looking to shit where they eat but a lot of their songs are about the 'fad' direction goth/punk is heading. Back in the day punk was rebellious, yes, but it was also political, critical and uncompromising. There is a sense that that has been lost when people care about--for example--whether DestroyX is getting a little 'chubby'. I even saw a poster on youtube moan, 'I miss her!' in reference to her weight as if she'd gone somewhere. She wasn't this intelligent, amazing, powerhouse. She's just a collection of body parts subject to 'innocent' comments about her weight) Time for bed. Maybe I'll finish this. Probably not

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