i couldn t get my head around this, my shoulders around it. you probably can. this thing is tight. this thing is tight, and that is just one of the many obstacles that these kids are going to have to face. with us now is matt bradley live in thailand. and here in studios dr. erwin r redliner. matt, let s start with you. we ve had four more rescues today. what s the next thing that happens? reporter: well, we don t really know. we just heard a press conference from one of the officials leading the rescue effort. he said that unlike some of the previous couple of days, they re actually going to need about 20 hours in order to prepare for the next round of extractions. remember, this has been going in a set of different rounds. on sunday we had four boys initially taken out.