Why U.S. CEOs are still 'optimistic' despite U.S.-China Trade war, global uncertainties

Student demonstrators at Hong Kong Polytechnic University are now barricading the campus as the city braces for more violence. This comes as China is seeing more signs of economic headwinds, as Bloomberg reports investment growth is slowing to a record low. PwC U.S. Chair and Senior Partner Tim Ryan breaks down how global pressures are impacting business. Yahoo Finance's Zack Guzman and Kristin Myers, along with Clearnomics Founder and CEO James Liu, join in on the conversation.