Asked by a member of Congress whether the US would move to accept a global reserve currency like the SDR or some other substitute that the Russians or Chinese might tout, bought Geithner and Bernanke categorically rejected the suggestion. The buck is getting a minor lift from that as well as from a pullback in the reflation trade that has been underway in recent sessions. A break below 1.3480 and 1.3410/20 is needed to turn the sentiment toward the dollar and away from the euro…