FRANCE'S first lady broke with protocol today as she held out a frosty hand to welcome Barack Obama. Stunning Carla Bruni was business-like in her greeting — while her hubby treated the US President's wife to a hug and Continental double kiss. The former model gave customary pecks on both cheeks to Michelle Obama and other dignitaries when the couple arrived in France. But when it came to the dashing US President the beauty kept a noticeable distance.