Instant Index: Netflix Nightmare; World's Fastest Train Unveiled ABC News' David Muir reveals the top stories that have people buzzing this week. Return to Sender: Holiday Gift Returns Surge to 37 Percent Retailers roll out money-saving deals in preparation for holiday present returns. Made in America: Christmas Gifts Give Back to US ABC News' David Muir reveals how many Christmas gifts made in America were under your tree. President Obama and First Lady Sit Down for Joint Interview ABC News' Barbara Walters has the exclusive holiday interview with the president and first lady.