president because on the one hand, he says he wants a very limited strike that sends a message about how we feel about chemical warfare and kind of and punish the syrians in some way without getting us involved in a deeper way. but if it s ta kind of limited sfwrik shar assad survives he s going to say i stood up to the united states of america and survived. so it is a very tricky thing. sure it is. but i kind you have emp thighes with the box he got himself in because i do believe the use of chemical weapons is different from a lot of other things. we re not talking about changing syria fundamentally. just talking about taking a stand against the use of chem wal weapons. dr. dyson, how troubled is the president on this? is this a gut wrenching moment for him. of course it is. talking about the metaphor of the surgery, the surgery was successful but the patient died. with the reality here, even if you have a surgical strike, you