The Rockefeller Foundation has proposed a new $75 billion effort to bolster the nation's coronavirus testing and contact tracing capabilities. Currently, the U.S. tests about 4.5 million people each week, but the foundation says we need to boost that number to 30 million per week in order to safely reopen the U.S. economy. Rockefeller Foundation president Dr. Rajiv Shah joins CBSN to discuss the proposal.