Andrew Slimmon, Morgan Stanley Investment Management Senior Portfolio Manager, says Wall Street is not being optimistic enough. Seema Shah, Principal Global Investments Chief Strategist, says the market is divided on the path of inflation. Ethan Harris, BofA Securities Head of Global Economic Research, doesn't expect the U.S. employment to fully return to normal before the end of the year. Dr. Amesh Adalja, Johns Hopkins Center for Health Security Senior Scholar, says vaccine hesitancy is the biggest issue in the U.S. right now by far.