Since our second president, John Adams, inhabited the White House, it has been burned by British troops, reconstructed, expanded and gut-renovated. Mo Rocca looks at the history of a cherished American landmark, which this past week was partly demolished by the White House's current occupant, President Trump, who is building a huge, privately-funded ballroom. https://www.cbsnews.com/news/the-white-house-a-cherished-american-landmark/ | CBS Sunday Morning