wait to pass judgment until we get to the bottom of it. there is a hearing on capitol hill look at the exchange of those high profile taliban prisoners. what do we expect to hear in that hearing? >> this is a hearing looking at two republicans. they are looking at the exchange and the implications for national security questions but two of the people that will be testifying include one of sg bowe bergdahl's unit mates there that served with him in afghanistan. many of these soldiers as you've mentioned have been extremely critical, calling bowe bergdahl a deserter and some of the accusations have also been that several other soldiers, as many as six other soldiers have died in the hunt and searching for bergdahl after he had been captured. we will hear from one of the family members of a deceased soldier. >> still to come on cnn, concerns are raised about the health of pope francis. we're going to look at the signs being talked about.