kristen: dr. peri, i know this is your specialty.hat other impact is there that maybe we haven't even thought of, when you have millions of people suddenly migrating in this way? how does it affect us in different ways? >> migration, in general, is one of those forces that has very deep consequences on the sending and receiving countries. my studies and research has always been focused on all the potential positive economic effects that immigrants have brought. two europe and to the united states, immigrants bring different culture, different ideas, different skills. they are an incredible asset to grow. they are younger than the natives and where there is an aging population, this will generate a possibility. they are -- it also comes at the cost of adjusting our culture. at the beginning, may straining some of our public sector schools, because a lot of their kids need education, maybe health care, because they need assistance. in the short term, that could be a cost and investment. but in the long term, a huge economic asset for t