MINYANVILLE ORIGINAL In what has become a trend in the past week US equities rose in early Tuesday trading but were unable to hold on to gains falling back into the red by midday with investors continuing to fret about Europe and how the fiscal cliff will be resolved.   The Nasdaq Composite (INDEXNASDAQ:.IXIC) was down 0.11% to 2 880.61 points on robust trading volume of 881.13 million as of 12:05 p.m. EST.   Facebook (NASDAQ:FB) the volume leader on the Nasdaq today was up a robust 9.16% to $21.68 despite its latest lockup expiration with some 800 million ...