did they know how many people were on the ground that they needed to get out. the remaining question, what happened to sergeant la david johnson? how did he get left behind? alisyn, chris? obviously that is the most heartbreaking, lingering question. barbara, thank you very much. let's bring in our pam. cnn military analyst colonel steve lauren and army brigadier general anthony tata, the author of the book "besieged." great to have boat of you and expertise with us. there is protocol once soldiers are lost and what happened and if we're getting enough information. colonel, i want to start with you for a second. you said you have been heartbroken watch this play out between the president and sergeant johnson's family about this condolence call which for whatever reason the family thought was insensitive. how do you see this? >> it is heartbreaking to watch