text:  Support for NPR comes from this station and from Fisher Investments. Fisher's dedicated team of specialists provide resources on investing, retirement income, estate planning, and more. Learn more at fisherinvestments.com. Investing in securities involves the risk of loss. From the Walton Family Foundation, working to create access to opportunity for people and communities by tackling tough social and environmental problems. More information is at waltonfamilyfoundation.org.