You're feeling what, now?

The top dogs at Marvel Comics had a press conference today to hype some of their upcoming series, and in doing so they released some pretty nifty preview art. Among the images are three pages from the upcoming Avengers/Invaders maxi-series, in which the World War II team of Captain America, Bucky, Namor the Sub-Mariner, the original Human Torch, and Toro time travel to the modern Marvel Universe.

I'm looking forward to that series a great deal, but I'm a little puzzled by an image in the preview. Just what feeling is Cap expressing here?

Anger? Determination? Lunacy? Constipation? Hmm...

Reminds me of some puzzling Superman art a couple weeks ago. If you don't get the reference there, Donna Summer still loves you.