Biodefense expert says the US must do more coronavirus testing to prevent spread

The Senate Committee on Homeland Security and Governmental Affairs is holding a roundtable this morning to discuss protecting the U.S. from global pandemics. Dr. Luciana Borio, former director of medical and biodefense preparedness at the National Security Council, will be a part of the hearing. She joins "Squawk Box" to discuss her thoughts on combatting the coronavirus outbreak.