One of the most iconic brands in financial television returns for today's issues and today's world. This week's Wall Street Week features David Westin's interviews with Former Treasury Secretary Lawrence H. Summers, Morgan Stanley Investment Management Chief Global Strategist Ruchir Sharma, Aperture Investors Chairman & CEO Peter Kraus, Financial Times Editorial Board Chair Gillian Tett and Polaris Partners Managing Partner Amy Schulman. The conversations highlight why zombie companies might be an unintended side effect of stimulus, how the surge in bond yields affects equities, and the global vaccination effort.