Total Commercial Real Estate Debt - $3.5 Trillion - Harvey Green

CNBC's program, Squawk on the Street, recently discussed the CMBS market and the concerns which exist going forward with these investments. Total commercial outstanding debt in the U.S. is estimated at $3.5 trillion, and concerns are mounting as roughly $400 billion in debt comes due this year. Harvey Green, CEO of Marcus & Millichap Real Estate Investment Services, shares his insight.