Shahid Ladha, BNP Paribas Head of G10 Rates Strategy Americas, says the ECB should embrace the opportunity to exit negative interest rates. Lori Calvasina, RBC Capital Markets Head of U.S. Equity Strategy, says the market valuation story is back. Janet Henry, HSBC Global Chief Economist, says it wouldn't be unusual to see the yield curve reach some kind of inversion with more monetary tightening. Angela Stent, Brookings Institution Nonresident Senior Fellow & Former U.S. National Intelligence Officer for Russia and Eurasia, says diplomacy with Russia seems to be stalling.