Secretary of the interior ken salazar tells us maybe the government is just a little too close to big oil. the number one international story tonight, a changing of the guard in the uk. labor leader gordon brown stepping down as prime minister. a day of high political drama ended when less than 90 minutes later, barely enough time to change the linens conservative david cameron moved in to 10 downing street. >> as tradition dictates, cameron was summoned and asked by the queen. >> her majesty the queen has asked me to form a new government and have i accepted. >> but cameron is not alone at ...