David McCullough is an honored historian, winner of two Pulitzer Prizes and two National Book Awards. His past books include The Wright Brothers , 1776 , and John Adams . On The Point, we hear about McCullough's latest book, a collection of speeches he’s given over his career to Congress, universities and historical societies. It’s titled The American Spirit, Who We Are and What We stand For . This book reminds readers of the core values to which all Americans subscribe, regardless of region,