kali callahan is a nurse working for the institute of physicians it works without borders. he arrived in america last week. first, i want to ask you this question, how do you feel about being at home? many people ask me this question and i don't have a good answer for this question. i definitely feel relieved to be back home with my family. for the first time feeling. i mean, i 'm having a hard time finding happiness because the fact that i'm safe is the result of leaving those people there alone. people see these images related to gaza, people see images of hospitals and images related to the terror caused by they see the dead children, they have seen all these images, but actually being there and experiencing it is another matter. you have experienced all these things that the camera can never capture. can you talk a little bit about that? what do you think about when you close your eyes at night? to answer m. sal, i think i should start with the fact that we changed our location about five times in 26 days due to security reasons . one of the places we were in was khanyo