The innocuous-looking 4.e3 has teeth. I don't like combining ....dxc4 with ceding the bishop pair after ...Bg4, but top players have done just this several times in 2011, including Bruzon and Gashimov at the World Cup. Kamsky's 7...a6 scores very well for Black, but that could simply be attributable to the fellow pushing the pawns.
And on Board 3, USCF Expert Isaac Braswell was upset by Peter Dimpoulous of Loyola, who won a pawn, then sacked a couple pawns back for a fierce kingside attack. (Isaac is a lightning-fast calculator and a time-trouble addict: even though he lost this game, realize that he was finding reasonable defensive moves in an instant!)
Of course, the Rogue Squadron won 4-2 because we are objectively awesome. But hats off to John, Peter, and our other worthy opponents from Rogers Park!