and the president reaffirmedis governnts committed to transparen, accountability and human rights as th wage this diffult but necessary fight. >>> fomore on the president's trip to meco, we're joined he once again by sharon o'neil, a fellow in tin american stues at council on foreign relations here in ne york. welcome back >> thank you. so this is presidt obama's second trip to mexo. what is the signicance of this particar meeting? >>well, this is a meeting that's been ld nually for the st four years. it's a north america summit bringi together prime minister harper of canada, president obama off t united states and calderon of mexico. soart of thisarger rmat. >> i was looking a flu season just around theorner and i understa talking about wife is on the, the agenda here and it sa that there will be greater coeration p i'm just wondering, wh exactly is do that an. >> unprecedented cooperation when swine flu bke now the april. weaw scientists from canada, theunited states, get together, scientis from mexico too to actually figur out what swine flu was and then to try to corol it. so we