and, survivors are now left digging through this rubble. whatever survivors there are. they are dealing with the reality that those who are missing may never come home. casey steegel live in joplin, missouri. casey, tell us about the president s trip. reporter: well, jamie, he s going to be here and then, speak at that memorial service, at 2:00, local time, that is 3:00, eastern. and, immediately following that, he will tour all of this damage first hand and meet with some of the are advisors, we understand. i want to show you around here, because, again on day 7 of this, and the pictures still difficult to wrap your mind around, here this is greenbriar nursing home that has been pretty much blown apart. you can see there are wheelchairs and medicine carts, medical supplies, strewn throughout the parking lot. according to the official state list, five of its residents remain unaccounted for, four of