Morgan Norwood reports from New York, more than 45 million Americans are on the move this holiday weekend as the travel crush tests the limits of the strained aviation industry; Selina Wang reports from Washington, President Trump delivered the commencement address at West Point where he took credit for restoring America's military; Alex Presha reports from Washington as millions of Americans are shopping for Memorial Day savings amid new fallout from President Trump's tariffs and more on tonight's broadcast of World News Tonight.