steve: every vice president until gerald ford lived in their apartment,ce or until the observatory was funded by congress in 1974, and nelson rockefeller, the first to use this home. where is it, and why is it significant in the story of the vice presidency? kate: well, it is about three miles from washington -- the white house, in a beautiful, leafy part of washington, most people have no idea. when i interviewed barbara bush, she said she didn't want to leave the naval observatory because you could go out in your bathrobe, and walk your dog, and no one would know you were there. when you go to the white house, you are obviously in the epicenter of political coverage, so there is just no privacy in the white house. but in the naval observatory, there's a beautiful pool. some people who have been there joe biden would have these great , parties in the back of the house where he would run around actually with a water gun, invite kids and families of reporters to come. just a really fun environment to have kids. i know that dick cheney told me he loved having his grandkids there. joe biden loved having his family there. it is