ducks right now. reporter: steven paul is a st. louis private inspector. last year the current owners of the ride the ducks hired him to inspect the vessels. in his report, he said he warned them that design flaws made the boats more susceptible to sinking and harder to escape in an emergency. one issue is that the canopy on the ducks as well as the curtains that come down the sides, when the curtains are down, there s no way for the people to escape. it becomes a people catcher. reporter: the owner of the duck boetd company insists safety is their number one priority. investigators are hoping video will shed more light. we have some fairly sophisticated means to dry them out, retrieve the data that s on there before we have a chance to see what s on the video. clues in the search for answers as loved ones seek to understand what went wrong. not knowing what they went through in those last few minutes, it is horrific. recovery efforts are set to