Green Lantern, Batman and others in “Unfinished Business”

Green Lantern

Whatever it is, it appears to have somehow embedded itself into his skin.

Any chance of getting it off?

Green Lantern

I must remind you, this not just one alien species before us, it's two, and I do not yet understand the subtleties of their interaction.

Warhawk

I'll take that as an "I don't know."