I realized that the song 'I Can't Be Cool' was more Batou's than the Major's. This takes place after episode seven in the second gig.

i can't be cool tra le catene

i can't be cool ad occhi chiusi

i can't be cool sotto i resti di un sonno profondo

fatto di guerre in nome di dio

Three hours later, she walked into the section nine hanger. Batou was sitting on the floor, cybernetic eyes locked on the empty plutonium cases that still sat on the floor. No one had had the heart to move them, preferring to leave them like an open wound – if they didn't touch it, perhaps they could forget about it.

Tougusa had gone home. Saito and Bomer were probably out with Ishikawa. Pazu was no doubt at the bar, as usual. Aramaki was doing paperwork, recording the details Gouda's trick, making sure that they would have a memoir of his actions to be used against him later. She should have been doing that, but one of the Tachikomas had mentioned that it must have been a hard job – for Batou was still sitting in the hangers.

She studied him for a moment before he shifted. "I couldn't see," he rumbled, "was there a gun in that guy's hand?"

She didn't answer, and he slammed his hand on the floor. "Damn it! That slimy bastard led us around the whole time! And now we killed a bunch of people who were probably just in a car wreak for nothing!"

A soft sigh, knowing he was right, but she still didn't answer.

"You knew, didn't you?" When she didn't answer, he sighed and rose. "I guess it's just as well I fell for it." He smirked, shoving his hands in his pockets. "I can't be cool."

She didn't bother nodding – he knew she understood. "Come on," she said instead, "the chief is still writing up the report, he'll want your input."

Batou nodded, and followed her up to the offices.

English Translation:

I can't be cool trapped in chains

I can't br cool with eyes closed

I can't be cool in the arms of deep sleep,

While war is waged in the name of god