Former FDA chief Scott Gottlieb on potential CDC changes to quarantine guidelines

The CDC is considering shortening the quarantine period for those who may have been exposed to Covid-19. Right now there is a two week waiting period, but in the coming weeks that number could be dropped down to 7 to 10 days. Dr. Scott Gottlieb, member of the boards of Pfizer and biotech company Illumina, and former FDA commissioner, joins "Squawk Box" to discuss.