mr. deweese -- how do you summarize the dangers to lap children? >> as you saw in the videos, the potential for a child trapped between the seat in front and the adults, they could be crushed. if they are ejected entirely, the opportunities for injury are numerous. essentially, what all this science is doing is pointing out the obvious. for a child or an adult, it is it to be restrained in the event of a crash than knocked -- than not. >> thank you. >> how many kids are we talking about? just give us a sense of how many kids are flying on laps with major carriers 121, regional 135, forget the general aviation, a day, an annual basis -- how many kids are talking about here? >> the statistics that the faa uses is 1% of domestic flights for children under 2 who have the potential to be a lap held. in 2009, there were 631 domestic claimants. >> we have some questions about that figure. can you repeat it again? ofwe're talking about 1% domestic and claimants -- domestic enplanements. there were 631 in 2009. so there were approximately 6 million. >> stat