Layla santiago fours in florida, thanks so much. let's talk more about all of this. joining us now is dr. michael menna, the chief science officer for e-med. thanks for being here. i want to get your reaction to the new cdc guidance that elizabeth walked us through. do you think this was the right move at the right time? >> i think the cdc is doing everything obviously in its power to try to keep society running, so on that front i think this is a good approach, but i do believe that this is a poor approach unless we have evidence that somebody is negative at that five-day mark when they leave...