And im poppy harlow. Track the virus or catch a second wave of this. That warning coming directly from cdc director Robert Redfield who raised the possibility of another lockdown just months from now. At the same time, new modeling shows we could see a surge in those states who loosened their restrictions early, particularly some southern states. As states open up, all 50 of them, we learned that if the u. S. Had locked down sooner, tens of thousands of american lives could have been saved. Were talking just a couple of weeks sooner and this pandemic might have looked a lot different here in the u. S. Lets get to senior medical correspondent elizabeth cohen. Lets take a look at this modeling. Again, its modeling, so its using the best Data Available making an educated guess, in effect. What difference does it say a lockdown would have made earlier . It says that it makes a lot of difference, a big difference, jim. So several other countries locked down, so to speak, before the United S