Hassan Damluji is Deputy Director of Global Policy & Advocacy at the Bill & Melinda Gates Foundation and author of 'The Responsible Globalist.' He explains how the foundation's $1.75 billion investment so far is being deployed to fight COVID-19 and the importance of funding the development of vaccines in advance to prepare for the next pandemic. He talks about his book, how 'globalism' has gotten a bad rap and proposes solutions for uniting countries to face humanity's biggest challenges, including immigration.