with us for a long time. um, we're going to -- we should be expecting that it will change and adapt to our -- our immune responses. and eventually, more and more people will get the infection. but the -- the key thing, for most of these infections, like the flu and whatnot, is if your body's prepared, then you won't get so sick and -- and require a breathing tube. >> dr. hsiao, thank you. learned a lot. i really appreciate you being on, tonight. >> yeah, thanks a lot for having me. >> all right. so we're way past warning signs. 200 scientists now say global warning -- warming can't be stopped. and the consequences, already, being felt are only the beginning if we don't do something, now. so, stay with us. today let's paint with behr ultra scuff defense... so that you can live that scuff-free life. honey, i'm home! honey! scuff defense. i love our scuff-free life. behr ultra scuff defense. exclusively at the home depot.