This week, Saudi Arabia’s Crown Prince Mohammed bin Salman promises to bring as much as $1 trillion in investment to the US as Saudi Arabia tries to pivot from oil towards becoming a global technology and investment player. And, from small-town Michigan to the headquarters of Walmart, we reveal how philanthropy, volunteering and community ties power America’s hidden generosity. Plus, what’s driving the US’s power grid strain? Later, McLaren’s Zak Brown reveals what it really takes to build a winning culture and why great leaders never get comfortable at the top.