>> anthony: we are at a point where we seem to be turning inwards.ling". lisa ling.where we seem to be t inwards. i mean, we're actually talking about building a wall around our country. and yet, you have been reaching out to people who don't necessarily agree with us -- gaza, iran, cuba -- i mean, i just wish that more americans had passports. the extent to which you can see how other people live seems useful, at worst, and incredibly pleasurable and interesting at best. >> president obama: it confirms the basic truth that people everywhere are pretty much the same. the same hopes and dreams. and when you come to a place like vietnam and you see former american vietnam vets coming back, when you see somebody like a john kerry or a john mccain, two very different people politically and temperamentally, but who were able to bond in